Swift Package Index

Build Information

Failed to build CardStack with Swift 5.7 for macOS (SPM).

Build Command

env DEVELOPER_DIR="/Applications/Xcode-14.2.0.app" xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.21.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/nhoogendoorn/CardStack.git
Reference: master
Initialized empty Git repository in /Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/nhoogendoorn/CardStack
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at f10f19c Merge pull request #16 from nhoogendoorn/nhoogendoorn-patch-1
Cloned https://github.com/nhoogendoorn/CardStack.git into spi-builder-workspace
f10f19ca51f5ae9d31e640f49c39b082f632d524
SUCCESS checkout https://github.com/nhoogendoorn/CardStack.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.7
Building package at path:  spi-builder-workspace
Running build ...
env DEVELOPER_DIR="/Applications/Xcode-14.2.0.app" xcrun swift build --arch arm64
Building ... (attempt 1)
Building for debugging...
[1/14] Compiling CardStack NavigationHelper.swift
[2/14] Compiling CardStack DragInformation.swift
[3/15] Compiling CardStack CardNavigation.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:12:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var currentIndex: Int = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:13:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var items: [Data] = []
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:44: error: 'ObservableObject' is only available in macOS 10.15 or newer
open class CardNavigation<Data: CardData>: ObservableObject {
                                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
[4/15] Compiling CardStack HorizontalDirection.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:12:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var currentIndex: Int = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:13:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var items: [Data] = []
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:44: error: 'ObservableObject' is only available in macOS 10.15 or newer
open class CardNavigation<Data: CardData>: ObservableObject {
                                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
[5/15] Compiling CardStack CardView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:27: error: 'View' is only available in macOS 10.15 or newer
public protocol CardView: View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardView: View {
                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:16:6: error: 'State' is only available in macOS 10.15 or newer
    @State var didAppear: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:17:6: error: 'State' is only available in macOS 10.15 or newer
    @State var isActive: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:18:6: error: 'State' is only available in macOS 10.15 or newer
    @State var originalItemSize: CGSize = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:23:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var dragValue: CGPoint
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:68: error: 'Binding' is only available in macOS 10.15 or newer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
                                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:5: note: add @available attribute to enclosing initializer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:32:9: error: 'ZStack' is only available in macOS 10.15 or newer
        ZStack {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:32:9: note: add 'if #available' version check
        ZStack {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:18: error: 'background(_:alignment:)' is only available in macOS 10.15 or newer
                .background(GeometryReader { geo in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:18: note: add 'if #available' version check
                .background(GeometryReader { geo in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:29: error: 'GeometryReader' is only available in macOS 10.15 or newer
                .background(GeometryReader { geo in
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:29: note: add 'if #available' version check
                .background(GeometryReader { geo in
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:21: error: 'Color' is only available in macOS 10.15 or newer
                    Color.clear
                    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:21: note: add 'if #available' version check
                    Color.clear
                    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:27: error: 'clear' is only available in macOS 10.15 or newer
                    Color.clear
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:27: note: add 'if #available' version check
                    Color.clear
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:36:26: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
                        .onAppear {
                         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:36:26: note: add 'if #available' version check
                        .onAppear {
                         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:39:19: error: 'frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:)' is only available in macOS 10.15 or newer
                }.frame(maxWidth: .infinity, maxHeight: .infinity))
                  ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:39:19: note: add 'if #available' version check
                }.frame(maxWidth: .infinity, maxHeight: .infinity))
                  ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:42:18: error: 'scaleEffect(_:anchor:)' is only available in macOS 10.15 or newer
                .scaleEffect(getScaleSize())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:42:18: note: add 'if #available' version check
                .scaleEffect(getScaleSize())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:18: error: 'animation' is only available in macOS 10.15 or newer
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:18: note: add 'if #available' version check
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:29: error: 'easeInOut(duration:)' is only available in macOS 10.15 or newer
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:29: note: add 'if #available' version check
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:47:18: error: 'offset' is only available in macOS 10.15 or newer
                .offset(getCardBaseOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:47:18: note: add 'if #available' version check
                .offset(getCardBaseOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swif
tpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:48:18: error: 'offset' is only available in macOS 10.15 or newer
                .offset(getCardDraggingOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:48:18: note: add 'if #available' version check
                .offset(getCardDraggingOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:49:18: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
                .onAppear {
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:49:18: note: add 'if #available' version check
                .onAppear {
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:52:14: error: 'onTapGesture(count:perform:)' is only available in macOS 10.15 or newer
            .onTapGesture {
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:52:14: note: add 'if #available' version check
            .onTapGesture {
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:56:10: error: 'frame(width:height:alignment:)' is only available in macOS 10.15 or newer
        .frame(width: itemSize.width, height: itemSize.height)
         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:56:10: note: add 'if #available' version check
        .frame(width: itemSize.width, height: itemSize.height)
         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
[6/15] Compiling CardStack CardContentView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:27: error: 'View' is only available in macOS 10.15 or newer
public protocol CardView: View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardView: View {
                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:16:6: error: 'State' is only available in macOS 10.15 or newer
    @State var didAppear: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:17:6: error: 'State' is only available in macOS 10.15 or newer
    @State var isActive: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:18:6: error: 'State' is only available in macOS 10.15 or newer
    @State var originalItemSize: CGSize = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:23:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var dragValue: CGPoint
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:68: error: 'Binding' is only available in macOS 10.15 or newer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
                                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:5: note: add @available attribute to enclosing initializer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:32:9: error: 'ZStack' is only available in macOS 10.15 or newer
        ZStack {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:32:9: note: add 'if #available' version check
        ZStack {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:18: error: 'background(_:alignment:)' is only available in macOS 10.15 or newer
                .background(GeometryReader { geo in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:18: note: add 'if #available' version check
                .background(GeometryReader { geo in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:29: error: 'GeometryReader' is only available in macOS 10.15 or newer
                .background(GeometryReader { geo in
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:29: note: add 'if #available' version check
                .background(GeometryReader { geo in
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:21: error: 'Color' is only available in macOS 10.15 or newer
                    Color.clear
                    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:21: note: add 'if #available' version check
                    Color.clear
                    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:27: error: 'clear' is only available in macOS 10.15 or newer
                    Color.clear
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:27: note: add 'if #available' version check
                    Color.clear
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:36:26: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
                        .onAppear {
                         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:36:26: note: add 'if #available' version check
                        .onAppear {
                         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:39:19: error: 'frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:)' is only available in macOS 10.15 or newer
                }.frame(maxWidth: .infinity, maxHeight: .infinity))
                  ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:39:19: note: add 'if #available' version check
                }.frame(maxWidth: .infinity, maxHeight: .infinity))
                  ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:42:18: error: 'scaleEffect(_:anchor:)' is only available in macOS 10.15 or newer
                .scaleEffect(getScaleSize())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:42:18: note: add 'if #available' version check
                .scaleEffect(getScaleSize())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:18: error: 'animation' is only available in macOS 10.15 or newer
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:18: note: add 'if #available' version check
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:29: error: 'easeInOut(duration:)' is only available in macOS 10.15 or newer
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:29: note: add 'if #available' version check
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:47:18: error: 'offset' is only available in macOS 10.15 or newer
                .offset(getCardBaseOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:47:18: note: add 'if #available' version check
                .offset(getCardBaseOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swif
tpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:48:18: error: 'offset' is only available in macOS 10.15 or newer
                .offset(getCardDraggingOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:48:18: note: add 'if #available' version check
                .offset(getCardDraggingOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:49:18: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
                .onAppear {
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:49:18: note: add 'if #available' version check
                .onAppear {
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:52:14: error: 'onTapGesture(count:perform:)' is only available in macOS 10.15 or newer
            .onTapGesture {
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:52:14: note: add 'if #available' version check
            .onTapGesture {
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:56:10: error: 'frame(width:height:alignment:)' is only available in macOS 10.15 or newer
        .frame(width: itemSize.width, height: itemSize.height)
         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:56:10: note: add 'if #available' version check
        .frame(width: itemSize.width, height: itemSize.height)
         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
[7/15] Compiling CardStack CardStackMainView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:13:6: error: 'State' is only available in macOS 10.15 or newer
    @State var dragValue: CGPoint = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:56: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                                                       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:22: note: add @available attribute to enclosing instance method
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:49: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                                                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:22: note: add @available attribute to enclosing instance method
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:52: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:22: note: add @available attribute to enclosing instance method
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: error: 'ZStack' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:28: error: 'trailing' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:28: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: error: 'ForEach' is only available in macOS 10.15 or newer
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: note: add 'if #available' version check
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: error: 'init(_:id:content:)' is only available in macOS 10.15 or newer
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: note: add 'if #available' version check
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:38: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:38: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:29:11: error: 'frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:)' is only available in macOS 10.15 or newer
        }.frame(maxWidth: .infinity, maxHeight: .infinity)
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:29:11: note: add 'if #available' version check
        }.frame(maxWidth: .infinity, maxHeight: .infinity)
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:33:14: error: 'offset(x:y:)' is only available in macOS 10.15 or newer
            .offset(x: getOffsetForStackedView(), y: .zero)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:33:14: note: add 'if #available' version check
            .offset(x: getOffsetForStackedView(), y: .zero)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:14: error: 'gesture(_:including:)' is only available in macOS 10.15 or newer
            .gesture(DragGesture()
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:14: note: add 'if #available' version check
            .gesture(DragGesture()
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:22: error: 'DragGesture' is only available in macOS 10.15 or newer
            .gesture(DragGesture()
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:22: note: add 'if #available' version check
            .gesture(DragGesture()
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:18: error: 'onChanged' is only available in macOS 10.15 or newer
                .onChanged({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:18: note: add 'if #available' version check
                .onChanged({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosi
ng generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:38: error: 'DragGesture' is only available in macOS 10.15 or newer
                .onChanged({ (value: DragGesture.Value) in
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:38: note: add 'if #available' version check
                .onChanged({ (value: DragGesture.Value) in
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:18: error: 'onEnded' is only available in macOS 10.15 or newer
                .onEnded({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:18: note: add 'if #available' version check
                .onEnded({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:36: error: 'DragGesture' is only available in macOS 10.15 or newer
                .onEnded({ (value: DragGesture.Value) in
                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:36: note: add 'if #available' version check
                .onEnded({ (value: DragGesture.Value) in
                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
[8/15] Compiling CardStack StackConfiguration.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:27: error: 'Identifiable' is only available in macOS 10.15 or newer
public protocol CardData: Identifiable {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardData: Identifiable {
                ^
[9/15] Compiling CardStack CardData.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:27: error: 'Identifiable' is only available in macOS 10.15 or newer
public protocol CardData: Identifiable {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardData: Identifiable {
                ^
[10/15] Compiling CardStack StackStyle.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/CGFloat.swift:12:39: error: cannot find 'UIScreen' in scope
    static let screenWidth: CGFloat = UIScreen.main.bounds.width
                                      ^~~~~~~~
[11/15] Compiling CardStack CGFloat.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/CGFloat.swift:12:39: error: cannot find 'UIScreen' in scope
    static let screenWidth: CGFloat = UIScreen.main.bounds.width
                                      ^~~~~~~~
error: emit-module command failed with exit code 1 (use -v to see invocation)
[12/15] Emitting module CardStack
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:12:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var currentIndex: Int = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:13:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var items: [Data] = []
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:44: error: 'ObservableObject' is only available in macOS 10.15 or newer
open class CardNavigation<Data: CardData>: ObservableObject {
                                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/CGFloat.swift:12:39: error: cannot find 'UIScreen' in scope
    static let screenWidth: CGFloat = UIScreen.main.bounds.width
                                      ^~~~~~~~
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:11: error: 'DragGesture' is only available in macOS 10.15 or newer
extension DragGesture.Value {
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:1: note: add @available attribute to enclosing extension
extension DragGesture.Value {
^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:27: error: 'Identifiable' is only available in macOS 10.15 or newer
public protocol CardData: Identifiable {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardData: Identifiable {
                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:27: error: 'View' is only available in macOS 10.15 or newer
public protocol CardView: View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardView: View {
                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:16:6: error: 'State' is only available in macOS 10.15 or newer
    @State var didAppear: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:17:6: error: 'State' is only available in macOS 10.15 or newer
    @State var isActive: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:18:6: error: 'State' is only available in macOS 10.15 or newer
    @State var originalItemSize: CGSize = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:23:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var dragValue: CGPoint
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:68: error: 'Binding' is only available in macOS 10.15 or newer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
                                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:5: note: add @available attribute to enclosing initializer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:13:6: error: 'State' is only available in macOS 10.15 or newer
    @State var dragValue: CGPoint = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:56: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                                                       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:22: note: add @available attribute to enclosing instance method
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:49: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                                                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:22: note: add @available attribute to enclosing instance method
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:52: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:22: note: add @available attribute to enclosing instance method
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
[13/15] Compiling CardStack DragGesture.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:11: error: 'DragGesture' is only available in macOS 10.15 or newer
extension DragGesture.Value {
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:1: note: add @available attribute to enclosing extension
extension DragGesture.Value {
^
[14/15] Compiling CardStack CardViewHelper.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:11: error: 'DragGesture' is only available in macOS 10.15 or newer
extension DragGesture.Value {
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:1: note: add @available attribute to enclosing extension
extension DragGesture.Value {
^
[15/15] Compiling CardStack CardStackView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:14: error: 'animation' is only available in macOS 10.15 or newer
            .animation(.default)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:14: note: add 'if #available' version check
            .animation(.default)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:25: error: 'default' is only available in macOS 10.15 or newer
            .animation(.default)
                        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:25: note: add 'if #available' version check
            .animation(.default)
                        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:23:14: error: 'frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:)' is only available in macOS 10.15 or newer
            .frame(maxWidth: .infinity, maxHeight: .infinity)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:23:14: note: add 'if #available' version check
            .frame(maxWidth: .infinity, maxHeight: .infinity)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:24:14: error: 'environmentObject' is only available in macOS 10.15 or newer
            .environmentObject(CardNavigation(items: items,
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:24:14: note: add 'if #available' version check
            .environmentObject(CardNavigation(items: items,
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
Retrying in 0 seconds ...
Building ... (attempt 2)
[0/1] Planning build
Building for debugging...
[1/12] Compiling CardStack CardStackMainView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:13:6: error: 'State' is only available in macOS 10.15 or newer
    @State var dragValue: CGPoint = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:56: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                                                       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:22: note: add @available attribute to enclosing instance method
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:49: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                                                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:22: note: add @available attribute to enclosing instance method
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:52: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:22: note: add @available attribute to enclosing instance method
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: error: 'ZStack' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:9: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:28: error: 'trailing' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:28: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: error: 'ForEach' is only available in macOS 10.15 or newer
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: note: add 'if #available' version check
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: error: 'init(_:id:content:)' is only available in macOS 10.15 or newer
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:24:13: note: add 'if #available' version check
            ForEach(navigation.reversedList, id: \.id) { item in
            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:38: warning: conformance of 'ForEach<Data, ID, Content>' to 'View' is only available in macOS 10.15 or newer
        ZStack(alignment: .trailing) {
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:21:38: note: add 'if #available' version check
        ZStack(alignment: .trailing) {
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:29:11: error: 'frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:)' is only available in macOS 10.15 or newer
        }.frame(maxWidth: .infinity, maxHeight: .infinity)
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:29:11: note: add 'if #available' version check
        }.frame(maxWidth: .infinity, maxHeight: .infinity)
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:33:14: error: 'offset(x:y:)' is only available in macOS 10.15 or newer
            .offset(x: getOffsetForStackedView(), y: .zero)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:33:14: note: add 'if #available' version check
            .offset(x: getOffsetForStackedView(), y: .zero)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:14: error: 'gesture(_:including:)' is only available in macOS 10.15 or newer
            .gesture(DragGesture()
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:14: note: add 'if #available' version check
            .gesture(DragGesture()
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:22: error: 'DragGesture' is only available in macOS 10.15 or newer
            .gesture(DragGesture()
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:34:22: note: add 'if #available' version check
            .gesture(DragGesture()
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:18: error: 'onChanged' is only available in macOS 10.15 or newer
                .onChanged({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:18: note: add 'if #available' version check
                .onChanged({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosi
ng generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:38: error: 'DragGesture' is only available in macOS 10.15 or newer
                .onChanged({ (value: DragGesture.Value) in
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:35:38: note: add 'if #available' version check
                .onChanged({ (value: DragGesture.Value) in
                                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:18: error: 'onEnded' is only available in macOS 10.15 or newer
                .onEnded({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:18: note: add 'if #available' version check
                .onEnded({ (value: DragGesture.Value) in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:36: error: 'DragGesture' is only available in macOS 10.15 or newer
                .onEnded({ (value: DragGesture.Value) in
                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:38:36: note: add 'if #available' version check
                .onEnded({ (value: DragGesture.Value) in
                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
[2/12] Compiling CardStack CardContentView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:16:6: error: 'State' is only available in macOS 10.15 or newer
    @State var didAppear: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:17:6: error: 'State' is only available in macOS 10.15 or newer
    @State var isActive: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:18:6: error: 'State' is only available in macOS 10.15 or newer
    @State var originalItemSize: CGSize = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:23:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var dragValue: CGPoint
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:68: error: 'Binding' is only available in macOS 10.15 or newer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
                                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:5: note: add @available attribute to enclosing initializer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:32:9: error: 'ZStack' is only available in macOS 10.15 or newer
        ZStack {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:32:9: note: add 'if #available' version check
        ZStack {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:18: error: 'background(_:alignment:)' is only available in macOS 10.15 or newer
                .background(GeometryReader { geo in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:18: note: add 'if #available' version check
                .background(GeometryReader { geo in
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:29: error: 'GeometryReader' is only available in macOS 10.15 or newer
                .background(GeometryReader { geo in
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:34:29: note: add 'if #available' version check
                .background(GeometryReader { geo in
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:21: error: 'Color' is only available in macOS 10.15 or newer
                    Color.clear
                    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:21: note: add 'if #available' version check
                    Color.clear
                    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:27: error: 'clear' is only available in macOS 10.15 or newer
                    Color.clear
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:35:27: note: add 'if #available' version check
                    Color.clear
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:36:26: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
                        .onAppear {
                         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:36:26: note: add 'if #available' version check
                        .onAppear {
                         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:39:19: error: 'frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:)' is only available in macOS 10.15 or newer
                }.frame(maxWidth: .infinity, maxHeight: .infinity))
                  ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:39:19: note: add 'if #available' version check
                }.frame(maxWidth: .infinity, maxHeight: .infinity))
                  ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:42:18: error: 'scaleEffect(_:anchor:)' is only available in macOS 10.15 or newer
                .scaleEffect(getScaleSize())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:42:18: note: add 'if #available' version check
                .scaleEffect(getScaleSize())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:18: error: 'animation' is only available in macOS 10.15 or newer
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:18: note: add 'if #available' version check
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:29: error: 'easeInOut(duration:)' is only available in macOS 10.15 or newer
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:43:29: note: add 'if #available' version check
                .animation(.easeInOut(duration: didAppear ? 0.3 : .zero))
                            ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:47:18: error: 'offset' is only available in macOS 10.15 or newer
                .offset(getCardBaseOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:47:18: note: add 'if #available' version check
                .offset(getCardBaseOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:48:18: error: 'offset' is only available in macOS 10.15 or newer
                .offset(getCardDraggingOffset())
                 ^
/Users/
builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:48:18: note: add 'if #available' version check
                .offset(getCardDraggingOffset())
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:49:18: error: 'onAppear(perform:)' is only available in macOS 10.15 or newer
                .onAppear {
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:49:18: note: add 'if #available' version check
                .onAppear {
                 ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:52:14: error: 'onTapGesture(count:perform:)' is only available in macOS 10.15 or newer
            .onTapGesture {
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:52:14: note: add 'if #available' version check
            .onTapGesture {
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:56:10: error: 'frame(width:height:alignment:)' is only available in macOS 10.15 or newer
        .frame(width: itemSize.width, height: itemSize.height)
         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:56:10: note: add 'if #available' version check
        .frame(width: itemSize.width, height: itemSize.height)
         ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/13] Emitting module CardStack
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:12:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var currentIndex: Int = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:13:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var items: [Data] = []
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:44: error: 'ObservableObject' is only available in macOS 10.15 or newer
open class CardNavigation<Data: CardData>: ObservableObject {
                                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/CGFloat.swift:12:39: error: cannot find 'UIScreen' in scope
    static let screenWidth: CGFloat = UIScreen.main.bounds.width
                                      ^~~~~~~~
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:11: error: 'DragGesture' is only available in macOS 10.15 or newer
extension DragGesture.Value {
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:1: note: add @available attribute to enclosing extension
extension DragGesture.Value {
^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:27: error: 'Identifiable' is only available in macOS 10.15 or newer
public protocol CardData: Identifiable {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardData: Identifiable {
                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:27: error: 'View' is only available in macOS 10.15 or newer
public protocol CardView: View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardView: View {
                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:16:6: error: 'State' is only available in macOS 10.15 or newer
    @State var didAppear: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:17:6: error: 'State' is only available in macOS 10.15 or newer
    @State var isActive: Bool = false
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:18:6: error: 'State' is only available in macOS 10.15 or newer
    @State var originalItemSize: CGSize = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:23:6: error: 'Binding' is only available in macOS 10.15 or newer
    @Binding var dragValue: CGPoint
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:68: error: 'Binding' is only available in macOS 10.15 or newer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
                                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:25:5: note: add @available attribute to enclosing initializer
    init(info: Data, configuration: StackConfiguration, dragValue: Binding<CGPoint>) {
    ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:31:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardContentView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardContentView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:12:6: error: 'EnvironmentObject' is only available in macOS 10.15 or newer
    @EnvironmentObject var navigation: CardNavigation<Data>
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:13:6: error: 'State' is only available in macOS 10.15 or newer
    @State var dragValue: CGPoint = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:20:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:56: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                                                       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:48:22: note: add @available attribute to enclosing instance method
    fileprivate func handleHorizontalDragging(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:49: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                                                ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:52:22: note: add @available attribute to enclosing instance method
    fileprivate func handleDraggingEnd(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:52: error: 'DragGesture' is only available in macOS 10.15 or newer
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                                                   ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:59:22: note: add @available attribute to enclosing instance method
    fileprivate func handleSwipeDirection(_ value: DragGesture.Value) {
                     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackMainView.swift:11:8: note: add @available attribute to enclosing generic struct
struct CardStackMainView<Content: CardView, Data: CardData>: View {
       ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
[4/13] Compiling CardStack DragGesture.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:11: error: 'DragGesture' is only available in macOS 10.15 or newer
extension DragGesture.Value {
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:1: note: add @available attribute to enclosing extension
extension DragGesture.Value {
^
[5/13] Compiling CardStack CardViewHelper.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:11: error: 'DragGesture' is only available in macOS 10.15 or newer
extension DragGesture.Value {
          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/DragGesture.swift:11:1: note: add @available attribute to enclosing extension
extension DragGesture.Value {
^
[6/13] Compiling CardStack StackConfiguration.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:27: error: 'Identifiable' is only available in macOS 10.15 or newer
public protocol CardData: Identifiable {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardData: Identifiable {
                ^
[7/13] Compiling CardStack CardData.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:27: error: 'Identifiable' is only available in macOS 10.15 or newer
public protocol CardData: Identifiable {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardData.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardData: Identifiable {
                ^
[8/13] Compiling CardStack CardView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:27: error: 'View' is only available in macOS 10.15 or newer
public protocol CardView: View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Protocols/CardView.swift:11:17: note: add @available attribute to enclosing protocol
public protocol CardView: View {
                ^
[9/13] Compiling CardStack StackStyle.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/CGFloat.swift:12:39: error: cannot find 'UIScreen' in scope
    static let screenWidth: CGFloat = UIScreen.main.bounds.width
                                      ^~~~~~~~
[10/13] Compiling CardStack CGFloat.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Extensions/CGFloat.swift:12:39: error: cannot find 'UIScreen' in scope
    static let screenWidth: CGFloat = UIScreen.main.bounds.width
                                      ^~~~~~~~
[11/13] Compiling CardStack CardNavigation.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:12:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var currentIndex: Int = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:13:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var items: [Data] = []
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:44: error: 'ObservableObject' is only available in macOS 10.15 or newer
open class CardNavigation<Data: CardData>: ObservableObject {
                                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
[12/13] Compiling CardStack HorizontalDirection.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:12:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var currentIndex: Int = .zero
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:13:6: error: 'Published' is only available in macOS 10.15 or newer
    @Published var items: [Data] = []
     ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:44: error: 'ObservableObject' is only available in macOS 10.15 or newer
open class CardNavigation<Data: CardData>: ObservableObject {
                                           ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/CardNavigation/CardNavigation.swift:11:12: note: add @available attribute to enclosing generic class
open class CardNavigation<Data: CardData>: ObservableObject {
           ^
[13/13] Compiling CardStack CardStackView.swift
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:14: error: 'animation' is only available in macOS 10.15 or newer
            .animation(.default)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:14: note: add 'if #available' version check
            .animation(.default)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:25: error: 'default' is only available in macOS 10.15 or newer
            .animation(.default)
                        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:22:25: note: add 'if #available' version check
            .animation(.default)
                        ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:23:14: error: 'frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:maxHeight:alignment:)' is only available in macOS 10.15 or newer
            .frame(maxWidth: .infinity, maxHeight: .infinity)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:23:14: note: add 'if #available' version check
            .frame(maxWidth: .infinity, maxHeight: .infinity)
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:24:14: error: 'environmentObject' is only available in macOS 10.15 or newer
            .environmentObject(CardNavigation(items: items,
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:24:14: note: add 'if #available' version check
            .environmentObject(CardNavigation(items: items,
             ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:20:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/o86TiJKT/2/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/CardStack/Views/CardStackView.swift:11:15: note: add @available attribute to enclosing generic struct
public struct CardStackView<Content: CardView, Data: CardData>: View {
              ^
Retrying in 0 seconds ...
BUILD FAILURE 5.7 macosSpm

Build Machine: Mac 5