Swift Package Index

Build Information

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

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.34.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/notsobigcompany/CardStack.git
Reference: main
Initialized empty Git repository in /Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/notsobigcompany/CardStack
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at cc0d8cf Adds deprecation warning. Updates README.
Cloned https://github.com/notsobigcompany/CardStack.git
Revision (git rev-parse @):
cc0d8cf4f6caf4cfaf71593c84c9d21eaf9460f0
SUCCESS checkout https://github.com/notsobigcompany/CardStack.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.9
Building package at path:  $workDir
https://github.com/notsobigcompany/CardStack.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.2.0.app xcrun swift build --arch arm64
Building for debugging...
error: emit-module command failed with exit code 1 (use -v to see invocation)
[1/2] Emitting module CardStack
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:8:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var currentIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:9:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var previousIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:12:6: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    @ViewBuilder private let content: (Data.Element) -> Content
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:13:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var finalCurrentIndex: Int
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:45: error: 'Binding' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:75: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                                                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:35: error: 'Gesture' is only available in macOS 10.15 or newer
    private var dragGesture: some Gesture {
                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:96: error: 'Identifiable' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:119: error: 'View' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                                                      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:119:20: error: 'Color' is only available in macOS 10.15 or newer
        let color: Color
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:117:12: note: add @available attribute to enclosing struct
    struct DemoItem: Identifiable {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:127:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var currentIndex = 0
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:128:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var tappedIndex: Int? = nil
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:24: error: 'View' is only available in macOS 10.15 or newer
        var body: some View {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:115:8: note: add @available attribute to enclosing struct
struct CardStackView_Previews: PreviewProvider {
       ^
[2/2] Compiling CardStack CardStack.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:8:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var currentIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:9:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var previousIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:12:6: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    @ViewBuilder private let content: (Data.Element) -> Content
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:13:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var finalCurrentIndex: Int
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:45: error: 'Binding' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:75: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                                                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:35: error: 'Gesture' is only available in macOS 10.15 or newer
    private var dragGesture: some Gesture {
                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:96: error: 'Identifiable' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:119: error: 'View' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                                                      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:119:20: error: 'Color' is only available in macOS 10.15 or newer
        let color: Color
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:117:12: note: add @available attribute to enclosing struct
    struct DemoItem: Identifiable {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:127:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var currentIndex = 0
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:128:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var tappedIndex: Int? = nil
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:24: error: 'View' is only available in macOS 10.15 or newer
        var body: some View {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:115:8: note: add @available attribute to enclosing struct
struct CardStackView_Previews: PreviewProvider {
       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: error: 'ZStack' is only available in macOS 10.15 or newer
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: note: add 'if #available' version check
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: note: add 'if #available' version check
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:28:13: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
            ForEach(Array(data.enumerated()), id: \.element.id) { (index, element) in
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:28:13: error: 'ForEach' is only available in macOS 10.15 or newer
            ForEach(Array(data.enumerated()), id: \.element.id) { (index, element) in
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:28:13: error: 'init(_:id:content:)' is only available in macOS 10.15 or newer
            ForEach(Array(data.enumerated()), id: \.element.id) { (index, element) in
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:30:22: error: 'zIndex' is only available in macOS 10.15 or newer
                    .zIndex(zIndex(for: index))
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:31:22: error: 'offset(x:y:)' is only available in macOS 10.15 or newer
                    .offset(x: xOffset(for: index), y: 0)
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:32:22: error: 'scaleEffect(_:anchor:)' is only available in macOS 10.15 or newer
                    .scaleEffect(scale(for: index), anchor: .center)
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:33:22: error: 'rotationEffect(_:anchor:)' is only available in macOS 10.15 or newer
                    .rotationEffect(.degrees(rotationDegrees(for: index)))
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:16: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:36:10: error: 'highPriorityGesture(_:including:)' is only available in macOS 10.15 or newer
        .highPriorityGesture(dragGesture)
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:36:10: note: add 'if #available' version check
        .highPriorityGesture(dragGesture)
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: error: 'DragGesture' is only available in macOS 10.15 or newer
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: note: add 'if #available' version check
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: error: 'init(minimumDistance:coordinateSpace:)' is only available in macOS 14.0 or newer
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: note: add 'if #available' version check
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:41:14: error: 'onChanged' is only available in macOS 10.15 or newer
            .onChanged { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:41:14: note: add 'if #available' version check
            .onChanged { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:17: error: 'withAnimation' is only available in macOS 10.15 or newer
                withAnimation(.interactiveSpring()) {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:17: note: add 'if #available' version check
                withAnimation(.interactiveSpring()) {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:32: error: 'interactiveSpring(duration:extraBounce:blendDuration:)' is only available in macOS 10.15 or newer
                withAnimation(.interactiveSpring()) {
                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:32: note: add 'if #available' version check
                withAnimation(.interactiveSpring()) {
                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:44:21: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
                    self.currentIndex = -x
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:44:21: note: add 'if #available' version check
                    self.currentIndex = -x
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:47:14: error: 'onEnded' is only available in macOS 10.15 or newer
            .onEnded { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:47:14: note: add 'if #available' version check
            .onEnded { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:49:17: error: setter for 'previousIndex' is only available in macOS 10.15 or newer
                self.previousIndex = self.currentIndex
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:49:17: note: add 'if #available' version check
                self.previousIndex = self.currentIndex
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:9: error: 'withAnimation' is only available in macOS 10.15 or newer
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:9: note: add 'if #available' version check
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:53:18: note: add @available attribute to enclosing instance method
    private func snapToNearestAbsoluteIndex(_ predictedEndTranslation: CGSize) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:24: error: 'interpolatingSpring(mass:stiffness:damping:initialVelocity:)' is only available in macOS 10.15 or newer
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:24: note: add 'if #available' version check
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:53:18: note: add @available attribute to enclosing instance method
    private func snapToNearestAbsoluteIndex(_ predictedEndTranslation: CGSize) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:63:17: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
                self.currentIndex = round(currentIndex)
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:63:17: note: add 'if #available' version check
                self.currentIndex = round(currentIndex)
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:53:18: note: add @available attribute to enclosing instance method
    private func snapToNearestAbsoluteIndex(_ predictedEndTranslation: CGSize) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:71:13: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
            self.currentIndex = 0
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:71:13: note: add 'if #available' version check
            self.currentIndex = 0
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:73:13: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
            self.currentIndex = maxIndex
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:73:13: note: add 'if #available' version check
            self.currentIndex = maxIndex
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:75:13: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
            self.currentIndex = index
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:75:13: note: add 'if #available' version check
            self.currentIndex = index
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:77:9: error: setter for 'finalCurrentIndex' is only available in macOS 10.15 or newer
        self.finalCurrentIndex = Int(self.currentIndex)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:77:9: note: add 'if #available' version check
        self.finalCurrentIndex = Int(self.currentIndex)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:132:47: error: 'red' is only available in macOS 10.15 or newer
                DemoItem(name: "Red", color: .red),
                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:132:47: note: add 'if #available' version check
                DemoItem(name: "Red", color: .red),
                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:133:50: error: 'orange' is only available in macOS 10.15 or newer
                DemoItem(name: "Orange", color: .orange),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:133:50: note: add 'if #available' version check
                DemoItem(name: "Orange", color: .orange),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:134:50: error: 'yellow' is only available in macOS 10.15 or newer
                DemoItem(name: "Yellow", color: .yellow),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:134:50: note: add 'if #available' version check
                DemoItem(name: "Yellow", color: .yellow),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:135:49: error: 'green' is only available in macOS 10.15 or newer
                DemoItem(name: "Green", color: .green),
                                                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:135:49: note: add 'if #available' version check
                DemoItem(name: "Green", color: .green),
                                                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:136:48: error: 'blue' is only available in macOS 10.15 or newer
                DemoItem(name: "Blue", color: .blue),
                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:136:48: note: add 'if #available' version check
                DemoItem(name: "Blue", color: .blue),
                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:137:50: error: 'purple' is only available in macOS 10.15 or newer
                DemoItem(name: "Purple", color: .purple),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:137:50: note: add 'if #available' version check
                DemoItem(name: "Purple", color: .purple),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:13: error: 'VStack' is only available in macOS 10.15 or newer
            VStack {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:13: note: add 'if #available' version check
            VStack {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: warning: conformance of 'Color' to 'ShapeStyle' is only available in macOS 10.15 or newer
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: note: add 'if #available' version check
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:17: warning: 'CardStack' is deprecated: Use CardDeckPageViewStyle in the new BigUIPaging package https://github.com/notsobigcompany/BigUIPaging
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:17: warning: conformance of 'Color' to 'ShapeStyle' is only available in macOS 10.15 or newer
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:17: note: add 'if #available' version check
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:64: warning: conformance of 'Color' to 'ShapeStyle' is only available in macOS 10.15 or newer
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:64: note: add 'if #available' version check
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:142:21: error: 'RoundedRectangle' is only available in macOS 10.15 or newer
                    RoundedRectangle(cornerRadius: 20, style: .continuous)
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:142:21: note: add 'if #available' version check
                    RoundedRectangle(cornerRadius: 20, style: .continuous)
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:143:26: error: 'fill(_:style:)' is only available in macOS 14.0 or newer
                        .fill(namedColor.color)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:143:26: note: add 'if #available' version check
                        .fill(namedColor.color)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:144:26: error: 'overlay(_:alignment:)' is only available in macOS 10.15 or newer
                        .overlay(
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:144:26: note: add 'if #available' version check
                        .overlay(
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:145:29: error: 'Text' is only available in macOS 10.15 or newer
                            Text(namedColor.name)
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:145:29: note: add 'if #available' version check
                            Text(namedColor.name)
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:34: error: 'font' is only available in macOS 10.15 or newer
                                .font(.largeTitle)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:34: note: add 'if #available' version check
                                .font(.largeTitle)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:40: error: 'largeTitle' is only available in macOS 10.15 or newer
                                .font(.largeTitle)
                                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:40: note: add 'if #available' version check
                                .font(.largeTitle)
                                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:147:34: error: 'fontWeight' is only available in macOS 10.15 or newer
                                .fontWeight(.bold)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:147:34: note: add 'if #available' version check
                                .fontWeight(.bold)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:34: error: 'foregroundColor' is only available in macOS 10.15 or newer
                                .foregroundColor(.white)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:34: note: add 'if #available' version check
                                .foregroundColor(.white)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:51: error: 'white' is only available in macOS 10.15 or newer
                                .foregroundColor(.white)
                                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:51: note: add 'if #available' version check
                                .foregroundColor(.white)
                                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:150:26: error: 'frame(width:height:alignment:)' is only available in macOS 10.15 or newer
                        .frame(height: 400)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:150:26: note: add 'if #available' version check
                        .frame(height: 400)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:151:26: error: 'onTapGesture(count:perform:)' is only available in macOS 10.15 or newer
                        .onTapGesture {
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:151:26: note: add 'if #available' version check
                        .onTapGesture {
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:152:29: error: setter for 'tappedIndex' is only available in macOS 10.15 or newer
                            tappedIndex = currentIndex
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:152:29: note: add 'if #available' version check
                            tappedIndex = currentIndex
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:154:26: error: 'padding' is only available in macOS 10.15 or newer
                        .padding(50)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:154:26: note: add 'if #available' version check
                        .padding(50)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: note: add 'if #available' version check
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: error: 'Text' is only available in macOS 10.15 or newer
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: note: add 'if #available' version check
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: note: add 'if #available' version check
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: error: 'Text' is only available in macOS 10.15 or newer
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: note: add 'if #available' version check
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: note: add 'if #available' version check
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: note: add 'if #available' version check
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: note: add 'if #available' version check
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: error: 'Text' is only available in macOS 10.15 or newer
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: note: add 'if #available' version check
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: note: add 'if #available' version check
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: note: add 'if #available' version check
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: note: add 'if #available' version check
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: note: add 'if #available' version check
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
error: fatalError
[0/1] Planning build
Building for debugging...
error: emit-module command failed with exit code 1 (use -v to see invocation)
[1/2] Emitting module CardStack
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:8:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var currentIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:9:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var previousIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:12:6: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    @ViewBuilder private let content: (Data.Element) -> Content
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:13:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var finalCurrentIndex: Int
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:45: error: 'Binding' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:75: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                                                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:35: error: 'Gesture' is only available in macOS 10.15 or newer
    private var dragGesture: some Gesture {
                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:96: error: 'Identifiable' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:119: error: 'View' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                                                      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:119:20: error: 'Color' is only available in macOS 10.15 or newer
        let color: Color
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:117:12: note: add @available attribute to enclosing struct
    struct DemoItem: Identifiable {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:127:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var currentIndex = 0
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:128:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var tappedIndex: Int? = nil
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:24: error: 'View' is only available in macOS 10.15 or newer
        var body: some View {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:115:8: note: add @available attribute to enclosing struct
struct CardStackView_Previews: PreviewProvider {
       ^
[2/2] Compiling CardStack CardStack.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:8:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var currentIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:9:6: error: 'State' is only available in macOS 10.15 or newer
    @State private var previousIndex: Double = 0.0
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:12:6: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    @ViewBuilder private let content: (Data.Element) -> Content
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:13:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var finalCurrentIndex: Int
     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:45: error: 'Binding' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:75: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
                                                                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:20:12: note: add @available attribute to enclosing initializer
    public init(_ data: Data, currentIndex: Binding<Int> = .constant(0), @ViewBuilder content: @escaping (Data.Element) -> Content) {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:35: error: 'Gesture' is only available in macOS 10.15 or newer
    private var dragGesture: some Gesture {
                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:96: error: 'Identifiable' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:7:119: error: 'View' is only available in macOS 10.15 or newer
public struct CardStack<Data, Content>: View where Data: RandomAccessCollection, Data.Element: Identifiable, Content: View {
                                                                                                                      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:119:20: error: 'Color' is only available in macOS 10.15 or newer
        let color: Color
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:117:12: note: add @available attribute to enclosing struct
    struct DemoItem: Identifiable {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:127:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var currentIndex = 0
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:128:10: error: 'State' is only available in macOS 10.15 or newer
        @State private var tappedIndex: Int? = nil
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:24: error: 'View' is only available in macOS 10.15 or newer
        var body: some View {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:168:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:115:8: note: add @available attribute to enclosing struct
struct CardStackView_Previews: PreviewProvider {
       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: error: 'ZStack' is only available in macOS 10.15 or newer
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: note: add 'if #available' version check
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:9: note: add 'if #available' version check
        ZStack {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:28:13: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
            ForEach(Array(data.enumerated()), id: \.element.id) { (index, element) in
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:28:13: error: 'ForEach' is only available in macOS 10.15 or newer
            ForEach(Array(data.enumerated()), id: \.element.id) { (index, element) in
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:28:13: error: 'init(_:id:content:)' is only available in macOS 10.15 or newer
            ForEach(Array(data.enumerated()), id: \.element.id) { (index, element) in
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:30:22: error: 'zIndex' is only available in macOS 10.15 or newer
                    .zIndex(zIndex(for: index))
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:31:22: error: 'offset(x:y:)' is only available in macOS 10.15 or newer
                    .offset(x: xOffset(for: index), y: 0)
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:32:22: error: 'scaleEffect(_:anchor:)' is only available in macOS 10.15 or newer
                    .scaleEffect(scale(for: index), anchor: .center)
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:33:22: error: 'rotationEffect(_:anchor:)' is only available in macOS 10.15 or newer
                    .rotationEffect(.degrees(rotationDegrees(for: index)))
                     ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:27:16: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:36:10: error: 'highPriorityGesture(_:including:)' is only available in macOS 10.15 or newer
        .highPriorityGesture(dragGesture)
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:36:10: note: add 'if #available' version check
        .highPriorityGesture(dragGesture)
         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:26:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: error: 'DragGesture' is only available in macOS 10.15 or newer
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: note: add 'if #available' version check
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: error: 'init(minimumDistance:coordinateSpace:)' is only available in macOS 14.0 or newer
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:40:9: note: add 'if #available' version check
        DragGesture()
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:41:14: error: 'onChanged' is only available in macOS 10.15 or newer
            .onChanged { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:41:14: note: add 'if #available' version check
            .onChanged { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:17: error: 'withAnimation' is only available in macOS 10.15 or newer
                withAnimation(.interactiveSpring()) {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:17: note: add 'if #available' version check
                withAnimation(.interactiveSpring()) {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:32: error: 'interactiveSpring(duration:extraBounce:blendDuration:)' is only available in macOS 10.15 or newer
                withAnimation(.interactiveSpring()) {
                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:42:32: note: add 'if #available' version check
                withAnimation(.interactiveSpring()) {
                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:44:21: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
                    self.currentIndex = -x
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:44:21: note: add 'if #available' version check
                    self.currentIndex = -x
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:47:14: error: 'onEnded' is only available in macOS 10.15 or newer
            .onEnded { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:47:14: note: add 'if #available' version check
            .onEnded { value in
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:49:17: error: setter for 'previousIndex' is only available in macOS 10.15 or newer
                self.previousIndex = self.currentIndex
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:49:17: note: add 'if #available' version check
                self.previousIndex = self.currentIndex
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:39:17: note: add @available attribute to enclosing property
    private var dragGesture: some Gesture {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:9: error: 'withAnimation' is only available in macOS 10.15 or newer
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:9: note: add 'if #available' version check
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:53:18: note: add @available attribute to enclosing instance method
    private func snapToNearestAbsoluteIndex(_ predictedEndTranslation: CGSize) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:24: error: 'interpolatingSpring(mass:stiffness:damping:initialVelocity:)' is only available in macOS 10.15 or newer
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:54:24: note: add 'if #available' version check
        withAnimation(.interpolatingSpring(stiffness: 300, damping: 40)) {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:53:18: note: add @available attribute to enclosing instance method
    private func snapToNearestAbsoluteIndex(_ predictedEndTranslation: CGSize) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:63:17: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
                self.currentIndex = round(currentIndex)
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:63:17: note: add 'if #available' version check
                self.currentIndex = round(currentIndex)
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:53:18: note: add @available attribute to enclosing instance method
    private func snapToNearestAbsoluteIndex(_ predictedEndTranslation: CGSize) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:71:13: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
            self.currentIndex = 0
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:71:13: note: add 'if #available' version check
            self.currentIndex = 0
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:73:13: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
            self.currentIndex = maxIndex
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:73:13: note: add 'if #available' version check
            self.currentIndex = maxIndex
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:75:13: error: setter for 'currentIndex' is only available in macOS 10.15 or newer
            self.currentIndex = index
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:75:13: note: add 'if #available' version check
            self.currentIndex = index
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:77:9: error: setter for 'finalCurrentIndex' is only available in macOS 10.15 or newer
        self.finalCurrentIndex = Int(self.currentIndex)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:77:9: note: add 'if #available' version check
        self.finalCurrentIndex = Int(self.currentIndex)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:68:18: note: add @available attribute to enclosing instance method
    private func goTo(_ index: Double) {
                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:132:47: error: 'red' is only available in macOS 10.15 or newer
                DemoItem(name: "Red", color: .red),
                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:132:47: note: add 'if #available' version check
                DemoItem(name: "Red", color: .red),
                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:133:50: error: 'orange' is only available in macOS 10.15 or newer
                DemoItem(name: "Orange", color: .orange),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:133:50: note: add 'if #available' version check
                DemoItem(name: "Orange", color: .orange),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:134:50: error: 'yellow' is only available in macOS 10.15 or newer
                DemoItem(name: "Yellow", color: .yellow),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:134:50: note: add 'if #available' version check
                DemoItem(name: "Yellow", color: .yellow),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:135:49: error: 'green' is only available in macOS 10.15 or newer
                DemoItem(name: "Green", color: .green),
                                                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:135:49: note: add 'if #available' version check
                DemoItem(name: "Green", color: .green),
                                                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:136:48: error: 'blue' is only available in macOS 10.15 or newer
                DemoItem(name: "Blue", color: .blue),
                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:136:48: note: add 'if #available' version check
                DemoItem(name: "Blue", color: .blue),
                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:137:50: error: 'purple' is only available in macOS 10.15 or newer
                DemoItem(name: "Purple", color: .purple),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:137:50: note: add 'if #available' version check
                DemoItem(name: "Purple", color: .purple),
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:13: error: 'VStack' is only available in macOS 10.15 or newer
            VStack {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:13: note: add 'if #available' version check
            VStack {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: warning: conformance of 'Color' to 'ShapeStyle' is only available in macOS 10.15 or newer
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: note: add 'if #available' version check
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:17: warning: 'CardStack' is deprecated: Use CardDeckPageViewStyle in the new BigUIPaging package https://github.com/notsobigcompany/BigUIPaging
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:17: warning: conformance of 'Color' to 'ShapeStyle' is only available in macOS 10.15 or newer
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:17: note: add 'if #available' version check
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:64: warning: conformance of 'Color' to 'ShapeStyle' is only available in macOS 10.15 or newer
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:141:64: note: add 'if #available' version check
                CardStack(colors, currentIndex: $currentIndex) { namedColor in
                                                               ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:142:21: error: 'RoundedRectangle' is only available in macOS 10.15 or newer
                    RoundedRectangle(cornerRadius: 20, style: .continuous)
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:142:21: note: add 'if #available' version check
                    RoundedRectangle(cornerRadius: 20, style: .continuous)
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:143:26: error: 'fill(_:style:)' is only available in macOS 14.0 or newer
                        .fill(namedColor.color)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:143:26: note: add 'if #available' version check
                        .fill(namedColor.color)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:144:26: error: 'overlay(_:alignment:)' is only available in macOS 10.15 or newer
                        .overlay(
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:144:26: note: add 'if #available' version check
                        .overlay(
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:145:29: error: 'Text' is only available in macOS 10.15 or newer
                            Text(namedColor.name)
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:145:29: note: add 'if #available' version check
                            Text(namedColor.name)
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:34: error: 'font' is only available in macOS 10.15 or newer
                                .font(.largeTitle)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:34: note: add 'if #available' version check
                                .font(.largeTitle)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:40: error: 'largeTitle' is only available in macOS 10.15 or newer
                                .font(.largeTitle)
                                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:146:40: note: add 'if #available' version check
                                .font(.largeTitle)
                                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:147:34: error: 'fontWeight' is only available in macOS 10.15 or newer
                                .fontWeight(.bold)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:147:34: note: add 'if #available' version check
                                .fontWeight(.bold)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:34: error: 'foregroundColor' is only available in macOS 10.15 or newer
                                .foregroundColor(.white)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:34: note: add 'if #available' version check
                                .foregroundColor(.white)
                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:51: error: 'white' is only available in macOS 10.15 or newer
                                .foregroundColor(.white)
                                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:148:51: note: add 'if #available' version check
                                .foregroundColor(.white)
                                                  ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:150:26: error: 'frame(width:height:alignment:)' is only available in macOS 10.15 or newer
                        .frame(height: 400)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:150:26: note: add 'if #available' version check
                        .frame(height: 400)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:151:26: error: 'onTapGesture(count:perform:)' is only available in macOS 10.15 or newer
                        .onTapGesture {
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:151:26: note: add 'if #available' version check
                        .onTapGesture {
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:152:29: error: setter for 'tappedIndex' is only available in macOS 10.15 or newer
                            tappedIndex = currentIndex
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:152:29: note: add 'if #available' version check
                            tappedIndex = currentIndex
                            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:154:26: error: 'padding' is only available in macOS 10.15 or newer
                        .padding(50)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:154:26: note: add 'if #available' version check
                        .padding(50)
                         ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: note: add 'if #available' version check
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: error: 'Text' is only available in macOS 10.15 or newer
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:158:17: note: add 'if #available' version check
                Text("Current card is \(currentIndex)")
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: note: add 'if #available' version check
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: error: 'Text' is only available in macOS 10.15 or newer
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:160:21: note: add 'if #available' version check
                    Text("Card \(tappedIndex) was tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: note: add 'if #available' version check
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:159:50: note: add 'if #available' version check
                if let tappedIndex = tappedIndex {
                                                 ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: note: add 'if #available' version check
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: error: 'Text' is only available in macOS 10.15 or newer
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:162:21: note: add 'if #available' version check
                    Text("No card has been tapped")
                    ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: note: add 'if #available' version check
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:161:24: note: add 'if #available' version check
                } else {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: warning: conformance of 'Text' to 'View' is only available in macOS 10.15 or newer
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: note: add 'if #available' version check
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:140:20: note: add 'if #available' version check
            VStack {
                   ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:130:13: note: add @available attribute to enclosing property
        var body: some View {
            ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardStack.swift:126:12: note: add @available attribute to enclosing struct
    struct DemoView: View {
           ^
error: fatalError
BUILD FAILURE 5.9 macosSpm