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Failed to build FeatureFlagsController with Swift 5.9 for macOS (SPM).

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            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:48:14: note: add 'if #available' version check
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:44:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:49:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:49:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:44:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:53:9: error: 'HStack' is only available in macOS 10.15 or newer
        HStack(spacing: 16) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:53:9: note: add 'if #available' version check
        HStack(spacing: 16) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:53:29: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        HStack(spacing: 16) {
                            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:53:29: note: add 'if #available' version check
        HStack(spacing: 16) {
                            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:53:29: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        HStack(spacing: 16) {
                            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:53:29: note: add 'if #available' version check
        HStack(spacing: 16) {
                            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:54:13: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:54:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:54:13: error: 'Text' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:54:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:55:13: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:55:13: note: add 'if #available' version check
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:55:13: error: 'Spacer' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:55:13: note: add 'if #available' version check
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:13: error: 'Picker' is only available in macOS 10.15 or newer
            Picker(selection: valueBinding, label: Text("")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:13: note: add 'if #available' version check
            Picker(selection: valueBinding, label: Text("")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:13: error: 'init(selection:label:content:)' is only available in macOS 10.15 or newer
            Picker(selection: valueBinding, label: Text("")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:13: note: add 'if #available' version check
            Picker(selection: valueBinding, label: Text("")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:52: error: 'Text' is only available in macOS 10.15 or newer
            Picker(selection: valueBinding, label: Text("")) {
                                                   ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:52: note: add 'if #available' version check
            Picker(selection: valueBinding, label: Text("")) {
                                                   ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:57:17: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
                ForEach(Value.allCases, id: \.hashValue) { value in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:57:17: note: add 'if #available' version check
                ForEach(Value.allCases, id: \.hashValue) { value in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:57:17: error: 'ForEach' is only available in macOS 10.15 or newer
                ForEach(Value.allCases, id: \.hashValue) { value in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:57:17: note: add 'if #available' version check
                ForEach(Value.allCases, id: \.hashValue) { value in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:57:17: error: 'init(_:id:content:)' is only available in macOS 10.15 or newer
                ForEach(Value.allCases, id: \.hashValue) { value in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:57:17: note: add 'if #available' version check
                ForEach(Value.allCases, id: \.hashValue) { value in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:62: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
            Picker(selection: valueBinding, label: Text("")) {
                                                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:56:62: note: add 'if #available' version check
            Picker(selection: valueBinding, label: Text("")) {
                                                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:61:14: error: 'pickerStyle' is only available in macOS 10.15 or newer
            .pickerStyle(style)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:61:14: note: add 'if #available' version check
            .pickerStyle(style)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:52:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:11:15: note: add @available attribute to enclosing generic struct
public struct PickerFeatureFlag<Value, Style: PickerStyle>: FeatureFlagType where
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:68:97: error: 'DefaultPickerStyle' is only available in macOS 10.15 or newer
        self = PickerFeatureFlag(title: title, defaultValue: defaultValue, group: group, style: DefaultPickerStyle())
                                                                                                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:68:97: note: add 'if #available' version check
        self = PickerFeatureFlag(title: title, defaultValue: defaultValue, group: group, style: DefaultPickerStyle())
                                                                                                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:67:12: note: add @available attribute to enclosing initializer
    public init(title: String, defaultValue: Value, group: String? = nil) {
           ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:66:1: note: add @available attribute to enclosing extension
extension PickerFeatureFlag where Style == DefaultPickerStyle {
^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:74:9: error: 'Text' is only available in macOS 10.15 or newer
        Text(String(describing: self)).tag(self)
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:74:9: note: add 'if #available' version check
        Text(String(describing: self)).tag(self)
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:73:22: note: add @available attribute to enclosing instance method
    fileprivate func makeView() -> some View {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:72:1: note: add @available attribute to enclosing extension
extension RawRepresentable where Self: Hashable, RawValue == String {
^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:74:40: error: 'tag' is only available in macOS 10.15 or newer
        Text(String(describing: self)).tag(self)
                                       ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:74:40: note: add 'if #available' version check
        Text(String(describing: self)).tag(self)
                                       ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:73:22: note: add @available attribute to enclosing instance method
    fileprivate func makeView() -> some View {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/PickerFeatureFlag.swift:72:1: note: add @available attribute to enclosing extension
extension RawRepresentable where Self: Hashable, RawValue == String {
^
[4/10] Compiling FeatureFlagsController ToggleFeatureFlag.swift
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:40:32: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public var valuePublisher: AnyPublisher<Bool, Never> {
                               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:40:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Bool, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:48:27: error: 'View' is only available in macOS 10.15 or newer
    public var view: some View {
                          ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:48:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:42:14: error: 'publisher(for:object:)' is only available in macOS 10.15 or newer
            .publisher(for: UserDefaults.didChangeNotification)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:42:14: note: add 'if #available' version check
            .publisher(for: UserDefaults.didChangeNotification)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:40:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Bool, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:43:14: error: 'map' is only available in macOS 10.15 or newer
            .map { _ in self.value }
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:43:14: note: add 'if #available' version check
            .map { _ in self.value }
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:40:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Bool, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:44:14: error: 'removeDuplicates()' is only available in macOS 10.15 or newer
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:44:14: note: add 'if #available' version check
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:40:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Bool, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:45:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:45:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:40:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Bool, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:49:9: error: 'Toggle' is only available in macOS 10.15 or newer
        Toggle(isOn: valueBinding) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:49:9: note: add 'if #available' version check
        Toggle(isOn: valueBinding) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:48:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:49:9: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        Toggle(isOn: valueBinding) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:49:9: note: add 'if #available' version check
        Toggle(isOn: valueBinding) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:48:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:50:13: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:50:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:48:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:50:13: error: 'Text' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:50:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:48:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:49:36: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        Toggle(isOn: valueBinding) {
                                   ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:49:36: note: add 'if #available' version check
        Toggle(isOn: valueBinding) {
                                   ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:48:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/ToggleFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct ToggleFeatureFlag: FeatureFlagType {
              ^
[5/10] Compiling FeatureFlagsController FeatureFlagsController.swift
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:18:10: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    ) -> AnyPublisher<F.Value, Never> {
         ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:43:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published
     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:50:10: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    ) -> AnyPublisher<F.Value, Never>? {
         ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:48:18: note: add @available attribute to enclosing instance method
    private func publisher<F: FeatureFlagType>(
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:55:22: error: 'AnyPublisher' is only available in macOS 10.15 or newer
        _ publisher: AnyPublisher<F.Value, Never>,
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:54:18: note: add @available attribute to enclosing instance method
    private func addPublisher<F: FeatureFlagType>(
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:46: error: 'ObservableObject' is only available in macOS 10.15 or newer
internal final class FeatureFlagsController: ObservableObject {
                                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:26:14: error: 'handleEvents(receiveSubscription:receiveOutput:receiveCompletion:receiveCancel:receiveRequest:)' is only available in macOS 10.15 or newer
            .handleEvents(
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:26:14: note: add 'if #available' version check
            .handleEvents(
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:27:44: error: 'objectWillChange' is only available in macOS 10.15 or newer
                receiveOutput: { _ in self.objectWillChange.send() },
                                           ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:27:44: note: add 'if #available' version check
                receiveOutput: { _ in self.objectWillChange.send() },
                                           ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:30:14: error: 'share()' is only available in macOS 10.15 or newer
            .share()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:30:14: note: add 'if #available' version check
            .share()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:31:14: error: 'prepend' is only available in macOS 10.15 or newer
            .prepend(flag.value)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:31:14: note: add 'if #available' version check
            .prepend(flag.value)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:32:14: error: 'removeDuplicates()' is only available in macOS 10.15 or newer
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:32:14: note: add 'if #available' version check
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:33:14: error: 'receive(on:options:)' is only available in macOS 10.15 or newer
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:33:14: note: add 'if #available' version check
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:34:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:34:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'DispatchQueue' to 'Scheduler' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'DispatchQueue' to 'Scheduler' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'DispatchQueue' to 'Scheduler' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'DispatchQueue' to 'Scheduler' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:24:13: note: add 'if #available' version check
        let publisher = flag
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:16:19: note: add @available attribute to enclosing instance method
    internal func register<F: FeatureFlagType>(
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
<unknown>:0: error: key path value type 'ReferenceWritableKeyPath<FeatureFlagsController, [FeatureFlagViewFactory]>' cannot be converted to contextual type 'KeyPath<FeatureFlagsController, [FeatureFlagViewFactory]>'
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:51:33: error: 'AnyPublisher' is only available in macOS 10.15 or newer
        publishers[flag.id] as? AnyPublisher<F.Value, Never>
                                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:51:33: note: add 'if #available' version check
        publishers[flag.id] as? AnyPublisher<F.Value, Never>
                                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:48:18: note: add @available attribute to enclosing instance method
    private func publisher<F: FeatureFlagType>(
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:59:13: error: cannot pass as inout because setter for 'viewFactories' is only available in macOS 10.15 or newer
            viewFactories.append(FeatureFlagViewFactory(flag))
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:59:13: note: add 'if #available' version check
            viewFactories.append(FeatureFlagViewFactory(flag))
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:54:18: note: add @available attribute to enclosing instance method
    private func addPublisher<F: FeatureFlagType>(
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:67:9: error: cannot pass as inout because setter for 'viewFactories' is only available in macOS 10.15 or newer
        viewFactories.removeAll(where: { $0.id == flag.id })
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:67:9: note: add 'if #available' version check
        viewFactories.removeAll(where: { $0.id == flag.id })
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:64:18: note: add @available attribute to enclosing instance method
    private func removePublisher<F: FeatureFlagType>(
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagsController.swift:11:22: note: add @available attribute to enclosing class
internal final class FeatureFlagsController: ObservableObject {
                     ^
[6/10] Compiling FeatureFlagsController CountFeatureFlag.swift
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:41:32: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public var valuePublisher: AnyPublisher<Int, Never> {
                               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:41:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Int, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:27: error: 'View' is only available in macOS 10.15 or newer
    public var view: some View {
                          ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:43:14: error: 'publisher(for:object:)' is only available in macOS 10.15 or newer
            .publisher(for: UserDefaults.didChangeNotification)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:43:14: note: add 'if #available' version check
            .publisher(for: UserDefaults.didChangeNotification)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:41:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Int, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:44:14: error: 'map' is only available in macOS 10.15 or newer
            .map { _ in self.value }
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:44:14: note: add 'if #available' version check
            .map { _ in self.value }
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:41:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Int, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:45:14: error: 'removeDuplicates()' is only available in macOS 10.15 or newer
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:45:14: note: add 'if #available' version check
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:41:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Int, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:46:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:46:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:41:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Int, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:50:9: error: 'HStack' is only available in macOS 10.15 or newer
        HStack {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:50:9: note: add 'if #available' version check
        HStack {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:50:16: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        HStack {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:50:16: note: add 'if #available' version check
        HStack {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:51:13: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:51:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:51:13: error: 'Text' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:51:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:52:13: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:52:13: note: add 'if #available' version check
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:52:13: error: 'Spacer' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:52:13: note: add 'if #available' version check
            Spacer()
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:56:14: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            .bold()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:56:14: note: add 'if #available' version check
            .bold()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:53:13: error: 'Text' is only available in macOS 10.15 or newer
            Text(
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:53:13: note: add 'if #available' version check
            Text(
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:56:14: error: 'bold()' is only available in macOS 10.15 or newer
            .bold()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:56:14: note: add 'if #available' version check
            .bold()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:57:13: error: 'Stepper' is only available in macOS 10.15 or newer
            Stepper(
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:57:13: note: add 'if #available' version check
            Stepper(
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:57:13: error: 'init(_:value:in:step:onEditingChanged:)' is only available in macOS 10.15 or newer
            Stepper(
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:57:13: note: add 'if #available' version check
            Stepper(
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:60:14: error: 'labelsHidden()' is only available in macOS 10.15 or newer
            .labelsHidden()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:60:14: note: add 'if #available' version check
            .labelsHidden()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:49:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/CountFeatureFlag.swift:11:15: note: add @available attribute to enclosing struct
public struct CountFeatureFlag: FeatureFlagType {
              ^
[7/10] Compiling FeatureFlagsController FeatureFlagsGroup.swift
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:33:43: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private var valuePublishers: [String: AnyPublisher<Value, Never>] {
                                          ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:33:17: note: add @available attribute to enclosing property
    private var valuePublishers: [String: AnyPublisher<Value, Never>] {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:37:39: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    private var activeValuePublisher: AnyPublisher<Value, Never> {
                                      ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:37:17: note: add @available attribute to enclosing property
    private var activeValuePublisher: AnyPublisher<Value, Never> {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:32: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public var valuePublisher: AnyPublisher<Value, Never> {
                               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:60:27: error: 'View' is only available in macOS 10.15 or newer
    public var view: some View {
                          ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:60:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:81:6: error: 'State' is only available in macOS 10.15 or newer
    @State var refreshCount: Int = 0
     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:83:38: error: 'Binding' is only available in macOS 10.15 or newer
    private var activeFeatureFlagID: Binding<String> {
                                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:83:17: note: add @available attribute to enclosing property
    private var activeFeatureFlagID: Binding<String> {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:49:14: error: 'publisher(for:object:)' is only available in macOS 10.15 or newer
            .publisher(for: UserDefaults.didChangeNotification)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:49:14: note: add 'if #available' version check
            .publisher(for: UserDefaults.didChangeNotification)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:50:14: error: 'map' is only available in macOS 10.15 or newer
            .map { _ in self.activeFeatureFlagID }
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:50:14: note: add 'if #available' version check
            .map { _ in self.activeFeatureFlagID }
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:51:14: error: 'prepend' is only available in macOS 10.15 or newer
            .prepend(self.activeFeatureFlagID)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:51:14: note: add 'if #available' version check
            .prepend(self.activeFeatureFlagID)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:52:14: error: 'removeDuplicates()' is only available in macOS 10.15 or newer
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:52:14: note: add 'if #available' version check
            .removeDuplicates()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:53:14: error: 'receive(on:options:)' is only available in macOS 10.15 or newer
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:53:14: note: add 'if #available' version check
            .receive(on: DispatchQueue.main)
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:54:14: error: 'flatMap(maxPublishers:_:)' is only available in macOS 11.0 or newer
            .flatMap { _ in
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:54:14: note: add 'if #available' version check
            .flatMap { _ in
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:54:22: warning: conformance of 'AnyPublisher<Output, Failure>' to 'Publisher' is only available in macOS 10.15 or newer
            .flatMap { _ in
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:54:22: note: add 'if #available' version check
            .flatMap { _ in
                     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:55:43: error: 'prepend' is only available in macOS 10.15 or newer
                self.activeValuePublisher.prepend(self.value)
                                          ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:55:43: note: add 'if #available' version check
                self.activeValuePublisher.prepend(self.value)
                                          ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:57:14: error: 'eraseToAnyPublisher()' is only available in macOS 10.15 or newer
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:57:14: note: add 'if #available' version check
            .eraseToAnyPublisher()
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:47:16: note: add @available attribute to enclosing property
    public var valuePublisher: AnyPublisher<Value, Never> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:61:9: error: 'NavigationLink' is only available in macOS 10.15 or newer
        NavigationLink(destination: FeatureFlagsGroupDetailView(featureFlag: self)) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:61:9: note: add 'if #available' version check
        NavigationLink(destination: FeatureFlagsGroupDetailView(featureFlag: self)) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:60:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:61:9: error: 'init(destination:label:)' is only available in macOS 10.15 or newer
        NavigationLink(destination: FeatureFlagsGroupDetailView(featureFlag: self)) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:61:9: note: add 'if #available' version check
        NavigationLink(destination: FeatureFlagsGroupDetailView(featureFlag: self)) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:60:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:62:13: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:62:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:60:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:62:13: error: 'Text' is only available in macOS 10.15 or newer
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:62:13: note: add 'if #available' version check
            Text(title)
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:60:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:61:85: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        NavigationLink(destination: FeatureFlagsGroupDetailView(featureFlag: self)) {
                                                                                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:61:85: note: add 'if #available' version check
        NavigationLink(destination: FeatureFlagsGroupDetailView(featureFlag: self)) {
                                                                                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:60:16: note: add @available attribute to enclosing property
    public var view: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:11:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlagsGroup<First: FeatureFlagType, Second: FeatureFlagType>: FeatureFlagType where First.Value == Second.Value {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:84:9: error: 'Binding' is only available in macOS 10.15 or newer
        Binding {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:84:9: note: add 'if #available' version check
        Binding {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:83:17: note: add @available attribute to enclosing property
    private var activeFeatureFlagID: Binding<String> {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:88:13: error: cannot pass as inout because setter for 'refreshCount' is only available in macOS 10.15 or newer
            refreshCount += 1
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:88:13: note: add 'if #available' version check
            refreshCount += 1
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:83:17: note: add @available attribute to enclosing property
    private var activeFeatureFlagID: Binding<String> {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:93:9: error: 'Form' is only available in macOS 10.15 or newer
        Form {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:93:9: note: add 'if #available' version check
        Form {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:93:14: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
        Form {
             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:94:13: warning: conformance of 'Section<Parent, Content, Footer>' to 'View' is only available in macOS 10.15 or newer
            Section(header: Text("ACTIVE FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:94:13: error: 'Section' is only available in macOS 10.15 or newer
            Section(header: Text("ACTIVE FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:94:13: error: 'init(header:content:)' is only available in macOS 10.15 or newer
            Section(header: Text("ACTIVE FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:94:29: error: 'Text' is only available in macOS 10.15 or newer
            Section(header: Text("ACTIVE FEATURE FLAG")) {
                            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:94:58: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            Section(header: Text("ACTIVE FEATURE FLAG")) {
                                                         ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:95:17: error: 'Picker' is only available in macOS 10.15 or newer
                Picker("", selection: activeFeatureFlagID) {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:95:17: error: 'init(_:selection:content:)' is only available in macOS 10.15 or newer
                Picker("", selection: activeFeatureFlagID) {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:95:24: error: 'LocalizedStringKey' is only available in macOS 10.15 or newer
                Picker("", selection: activeFeatureFlagID) {
                       ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:96:21: error: 'Text' is only available in macOS 10.15 or newer
                    Text("First").tag(featureFlag.first.id)
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:96:35: error: 'tag' is only available in macOS 10.15 or newer
                    Text("First").tag(featureFlag.first.id)
                                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:97:21: error: 'Text' is only available in macOS 10.15 or newer
                    Text("Second").tag(featureFlag.second.id)
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:97:36: error: 'tag' is only available in macOS 10.15 or newer
                    Text("Second").tag(featureFlag.second.id)
                                   ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:99:18: error: 'pickerStyle' is only available in macOS 10.15 or newer
                .pickerStyle(SegmentedPickerStyle())
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:99:30: error: 'SegmentedPickerStyle' is only available in macOS 10.15 or newer
                .pickerStyle(SegmentedPickerStyle())
                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:101:13: warning: conformance of 'Section<Parent, Content, Footer>' to 'View' is only available in macOS 10.15 or newer
            Section(header: Text("FIRST FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:101:13: error: 'Section' is only available in macOS 10.15 or newer
            Section(header: Text("FIRST FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:101:13: error: 'init(header:content:)' is only available in macOS 10.15 or newer
            Section(header: Text("FIRST FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:101:29: error: 'Text' is only available in macOS 10.15 or newer
            Section(header: Text("FIRST FEATURE FLAG")) {
                            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:102:40: error: 'opacity' is only available in macOS 10.15 or newer
                featureFlag.first.view.opacity(activeFeatureFlagID.wrappedValue == featureFlag.first.id ? 1 : 0.5)
                                       ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:104:13: warning: conformance of 'Section<Parent, Content, Footer>' to 'View' is only available in macOS 10.15 or newer
            Section(header: Text("SECOND FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:104:13: error: 'Section' is only available in macOS 10.15 or newer
            Section(header: Text("SECOND FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:104:13: error: 'init(header:content:)' is only available in macOS 10.15 or newer
            Section(header: Text("SECOND FEATURE FLAG")) {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:104:29: error: 'Text' is only available in macOS 10.15 or newer
            Section(header: Text("SECOND FEATURE FLAG")) {
                            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:105:41: error: 'opacity' is only available in macOS 10.15 or newer
                featureFlag.second.view.opacity(activeFeatureFlagID.wrappedValue == featureFlag.second.id ? 1 : 0.5)
                                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:108:10: error: 'tag' is only available in macOS 10.15 or newer
        .tag(refreshCount)
         ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:92:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:77:16: note: add @available attribute to enclosing generic struct
private struct FeatureFlagsGroupDetailView<First: FeatureFlagType, Second: FeatureFlagType>: View where First.Value == Second.Value {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/Flag Types/FeatureFlagsGroup.swift:109:10: error: 'navigationBarTitle' is unavailable in macOS
        .navigationBarTitle(featureFlag.title)
         ^~~~~~~~~~~~~~~~~~
SwiftUI.View:29:17: note: 'navigationBarTitle' has been explicitly marked unavailable here
    public func navigationBarTitle<S>(_ title: S) -> some View where S : StringProtocol
                ^
[8/10] Compiling FeatureFlagsController FeatureFlag.swift
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:13:6: error: 'StateObject' is only available in macOS 11.0 or newer
    @StateObject private var registration: Registration
     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:12:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlag<F: FeatureFlagType>: DynamicProperty {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:31:10: error: 'Published' is only available in macOS 10.15 or newer
        @Published var value: F.Value
         ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:33:34: error: 'AnyCancellable' is only available in macOS 10.15 or newer
        private var cancellable: AnyCancellable?
                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:26:30: error: 'StateObject' is only available in macOS 11.0 or newer
        self._registration = StateObject(wrappedValue: Registration(featureFlag))
                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:26:30: note: add 'if #available' version check
        self._registration = StateObject(wrappedValue: Registration(featureFlag))
                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:24:12: note: add @available attribute to enclosing initializer
    public init(_ featureFlag: F) {
           ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:12:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlag<F: FeatureFlagType>: DynamicProperty {
              ^
<unknown>:0: error: key path value type 'ReferenceWritableKeyPath<FeatureFlag<F>.Registration, F.Value>' cannot be converted to contextual type 'KeyPath<FeatureFlag<F>.Registration, F.Value>'
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:36:13: error: setter for 'value' is only available in macOS 10.15 or newer
            value = featureFlag.value
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:36:13: note: add 'if #available' version check
            value = featureFlag.value
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:35:9: note: add @available attribute to enclosing initializer
        init(_ featureFlag: F) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:37:50: error: 'sink(receiveValue:)' is only available in macOS 10.15 or newer
            cancellable = featureFlag.register().sink(receiveValue: { [weak self] newValue in
                                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:37:50: note: add 'if #available' version check
            cancellable = featureFlag.register().sink(receiveValue: { [weak self] newValue in
                                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:35:9: note: add @available attribute to enclosing initializer
        init(_ featureFlag: F) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:38:17: error: setter for 'value' is only available in macOS 10.15 or newer
                self?.value = newValue
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:38:17: note: add 'if #available' version check
                self?.value = newValue
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:35:9: note: add @available attribute to enclosing initializer
        init(_ featureFlag: F) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:14:34: error: 'View' is only available in macOS 10.15 or newer
    associatedtype View: SwiftUI.View
                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:12:17: note: add @available attribute to enclosing protocol
public protocol FeatureFlagType {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:20:25: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    var valuePublisher: AnyPublisher<Value, Never> { get }
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:20:9: note: add @available attribute to enclosing property
    var valuePublisher: AnyPublisher<Value, Never> { get }
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:12:17: note: add @available attribute to enclosing protocol
public protocol FeatureFlagType {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:27:31: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public func register() -> AnyPublisher<Value, Never> {
                              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:27:17: note: add @available attribute to enclosing instance method
    public func register() -> AnyPublisher<Value, Never> {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:25:1: note: add @available attribute to enclosing extension
extension FeatureFlagType {
^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:31:30: error: 'Binding' is only available in macOS 10.15 or newer
    public var valueBinding: Binding<Value> {
                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:31:16: note: add @available attribute to enclosing property
    public var valueBinding: Binding<Value> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:25:1: note: add @available attribute to enclosing extension
extension FeatureFlagType {
^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:32:9: error: 'Binding' is only available in macOS 10.15 or newer
        Binding {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:32:9: note: add 'if #available' version check
        Binding {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:31:16: note: add @available attribute to enclosing property
    public var valueBinding: Binding<Value> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:25:1: note: add @available attribute to enclosing extension
extension FeatureFlagType {
^
[9/10] Compiling FeatureFlagsController FeatureFlagType.swift
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:13:6: error: 'StateObject' is only available in macOS 11.0 or newer
    @StateObject private var registration: Registration
     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:12:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlag<F: FeatureFlagType>: DynamicProperty {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:31:10: error: 'Published' is only available in macOS 10.15 or newer
        @Published var value: F.Value
         ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:33:34: error: 'AnyCancellable' is only available in macOS 10.15 or newer
        private var cancellable: AnyCancellable?
                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:26:30: error: 'StateObject' is only available in macOS 11.0 or newer
        self._registration = StateObject(wrappedValue: Registration(featureFlag))
                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:26:30: note: add 'if #available' version check
        self._registration = StateObject(wrappedValue: Registration(featureFlag))
                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:24:12: note: add @available attribute to enclosing initializer
    public init(_ featureFlag: F) {
           ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:12:15: note: add @available attribute to enclosing generic struct
public struct FeatureFlag<F: FeatureFlagType>: DynamicProperty {
              ^
<unknown>:0: error: key path value type 'ReferenceWritableKeyPath<FeatureFlag<F>.Registration, F.Value>' cannot be converted to contextual type 'KeyPath<FeatureFlag<F>.Registration, F.Value>'
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:36:13: error: setter for 'value' is only available in macOS 10.15 or newer
            value = featureFlag.value
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:36:13: note: add 'if #available' version check
            value = featureFlag.value
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:35:9: note: add @available attribute to enclosing initializer
        init(_ featureFlag: F) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:37:50: error: 'sink(receiveValue:)' is only available in macOS 10.15 or newer
            cancellable = featureFlag.register().sink(receiveValue: { [weak self] newValue in
                                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:37:50: note: add 'if #available' version check
            cancellable = featureFlag.register().sink(receiveValue: { [weak self] newValue in
                                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:35:9: note: add @available attribute to enclosing initializer
        init(_ featureFlag: F) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:38:17: error: setter for 'value' is only available in macOS 10.15 or newer
                self?.value = newValue
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:38:17: note: add 'if #available' version check
                self?.value = newValue
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:35:9: note: add @available attribute to enclosing initializer
        init(_ featureFlag: F) {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlag.swift:29:19: note: add @available attribute to enclosing class
    private class Registration: ObservableObject {
                  ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:14:34: error: 'View' is only available in macOS 10.15 or newer
    associatedtype View: SwiftUI.View
                                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:12:17: note: add @available attribute to enclosing protocol
public protocol FeatureFlagType {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:20:25: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    var valuePublisher: AnyPublisher<Value, Never> { get }
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:20:9: note: add @available attribute to enclosing property
    var valuePublisher: AnyPublisher<Value, Never> { get }
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:12:17: note: add @available attribute to enclosing protocol
public protocol FeatureFlagType {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:27:31: error: 'AnyPublisher' is only available in macOS 10.15 or newer
    public func register() -> AnyPublisher<Value, Never> {
                              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:27:17: note: add @available attribute to enclosing instance method
    public func register() -> AnyPublisher<Value, Never> {
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:25:1: note: add @available attribute to enclosing extension
extension FeatureFlagType {
^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:31:30: error: 'Binding' is only available in macOS 10.15 or newer
    public var valueBinding: Binding<Value> {
                             ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:31:16: note: add @available attribute to enclosing property
    public var valueBinding: Binding<Value> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:25:1: note: add @available attribute to enclosing extension
extension FeatureFlagType {
^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:32:9: error: 'Binding' is only available in macOS 10.15 or newer
        Binding {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:32:9: note: add 'if #available' version check
        Binding {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:31:16: note: add @available attribute to enclosing property
    public var valueBinding: Binding<Value> {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/FeatureFlagType.swift:25:1: note: add @available attribute to enclosing extension
extension FeatureFlagType {
^
[10/10] Compiling FeatureFlagsController FeatureFlagsView.swift
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:13:6: error: 'ObservedObject' is only available in macOS 10.15 or newer
    @ObservedObject
     ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:45:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:45:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:44:8: note: add @available attribute to enclosing struct
struct FeatureFlagsView_Previews: PreviewProvider {
       ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:29:9: error: 'NavigationView' is only available in macOS 10.15 or newer
        NavigationView {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:29:9: note: add 'if #available' version check
        NavigationView {
        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:29:24: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        NavigationView {
                       ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:29:24: note: add 'if #available' version check
        NavigationView {
                       ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:30:13: error: 'Form' is only available in macOS 10.15 or newer
            Form {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:30:13: note: add 'if #available' version check
            Form {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:30:13: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
            Form {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:30:13: note: add 'if #available' version check
            Form {
            ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:17: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:17: note: add 'if #available' version check
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:17: error: 'ForEach' is only available in macOS 10.15 or newer
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:17: note: add 'if #available' version check
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:17: error: 'init(_:id:content:)' is only available in macOS 10.15 or newer
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:17: note: add 'if #available' version check
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:21: warning: conformance of 'Section<Parent, Content, Footer>' to 'View' is only available in macOS 10.15 or newer
                    Section(header: Text(groupName ?? "")) {
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:21: note: add 'if #available' version check
                    Section(header: Text(groupName ?? "")) {
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:21: error: 'Section' is only available in macOS 10.15 or newer
                    Section(header: Text(groupName ?? "")) {
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:21: note: add 'if #available' version check
                    Section(header: Text(groupName ?? "")) {
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:21: error: 'init(header:content:)' is only available in macOS 10.15 or newer
                    Section(header: Text(groupName ?? "")) {
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:21: note: add 'if #available' version check
                    Section(header: Text(groupName ?? "")) {
                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:37: error: 'Text' is only available in macOS 10.15 or newer
                    Section(header: Text(groupName ?? "")) {
                                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:37: note: add 'if #available' version check
                    Section(header: Text(groupName ?? "")) {
                                    ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:33:25: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
                        ForEach(factories, id: \.id) { factory in
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:33:25: note: add 'if #available' version check
                        ForEach(factories, id: \.id) { factory in
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:33:25: error: 'ForEach' is only available in macOS 10.15 or newer
                        ForEach(factories, id: \.id) { factory in
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:33:25: note: add 'if #available' version check
                        ForEach(factories, id: \.id) { factory in
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:33:25: error: 'init(_:id:content:)' is only available in macOS 10.15 or newer
                        ForEach(factories, id: \.id) { factory in
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:33:25: note: add 'if #available' version check
                        ForEach(factories, id: \.id) { factory in
                        ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:60: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
                    Section(header: Text(groupName ?? "")) {
                                                           ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:32:60: note: add 'if #available' version check
                    Section(header: Text(groupName ?? "")) {
                                                           ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:48: warning: conformance of 'Section<Parent, Content, Footer>' to 'View' is only available in macOS 10.15 or newer
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                                               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:31:48: note: add 'if #available' version check
                ForEach(groupedFlags, id: \.0) { groupName, factories in
                                               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:30:18: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
            Form {
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:30:18: note: add 'if #available' version check
            Form {
                 ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:39:14: error: 'navigationBarTitle' is unavailable in macOS
            .navigationBarTitle("Feature Flags")
             ^~~~~~~~~~~~~~~~~~
SwiftUI.View:22:17: note: 'navigationBarTitle' has been explicitly marked unavailable here
    public func navigationBarTitle(_ titleKey: LocalizedStringKey) -> some View
                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:39:33: error: 'LocalizedStringKey' is only available in macOS 10.15 or newer
            .navigationBarTitle("Feature Flags")
                                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:39:33: note: add 'if #available' version check
            .navigationBarTitle("Feature Flags")
                                ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:28:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/TDmZkXJm/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/FeatureFlagsController/UI/FeatureFlagsView.swift:9:15: note: add @available attribute to enclosing struct
public struct FeatureFlagsView: View {
              ^
error: fatalError
BUILD FAILURE 5.9 macosSpm