Swift Package Index

Build Information

Failed to build Billboard with Swift 5.10 for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64

Build Log

         @ViewBuilder content: @escaping (AsyncImagePhase) -> Content) {
          ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:18:5: note: add @available attribute to enclosing initializer
    init(url: String,
    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:8: note: add @available attribute to enclosing generic struct
struct CachedImage<Content: View>: View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:21:43: error: 'AsyncImagePhase' is only available in macOS 12.0 or newer
         @ViewBuilder content: @escaping (AsyncImagePhase) -> Content) {
                                          ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:18:5: note: add @available attribute to enclosing initializer
    init(url: String,
    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:8: note: add @available attribute to enclosing generic struct
struct CachedImage<Content: View>: View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:20:39: error: 'identity' is only available in macOS 10.15 or newer
         transition: AnyTransition = .identity,
                                      ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:18:5: note: add @available attribute to enclosing initializer
    init(url: String,
    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:8: note: add @available attribute to enclosing generic struct
struct CachedImage<Content: View>: View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:29:27: error: 'View' is only available in macOS 10.15 or newer
    public var body: some View {
                          ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:29:16: note: add @available attribute to enclosing property
    public var body: some View {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:8: note: add @available attribute to enclosing generic struct
struct CachedImage<Content: View>: View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:29: error: 'View' is only available in macOS 10.15 or newer
struct CachedImage<Content: View>: View {
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:8: note: add @available attribute to enclosing generic struct
struct CachedImage<Content: View>: View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:59:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:59:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:58:8: note: add @available attribute to enclosing struct
struct CachedImage_Previews: PreviewProvider {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:36:32: error: cannot find 'UIImage' in scope
                if let image = UIImage(data: data) {
                               ^~~~~~~
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:60:136: error: 'EmptyView' is only available in macOS 10.15 or newer
        CachedImage(url: "https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/RedDot_Burger.jpg/600px-RedDot_Burger.jpg") { _ in EmptyView() }
                                                                                                                                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:60:136: note: add 'if #available' version check
        CachedImage(url: "https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/RedDot_Burger.jpg/600px-RedDot_Burger.jpg") { _ in EmptyView() }
                                                                                                                                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:59:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:58:8: note: add @available attribute to enclosing struct
struct CachedImage_Previews: PreviewProvider {
       ^
[24/25] Compiling Billboard DefaultAdView.swift
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:31: error: 'View' is only available in macOS 10.15 or newer
    var backgroundView : some View {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:49:6: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    @ViewBuilder
     ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:79:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:79:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:78:8: note: add @available attribute to enclosing struct
struct DefaultAdView_Previews: PreviewProvider {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:12: warning: result builder 'ViewBuilder' does not implement 'buildLimitedAvailability'; this code may crash on earlier versions of the OS
        if #available(iOS 16, *) {
           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:15:13: error: 'ViewThatFits' is only available in macOS 13.0 or newer
            ViewThatFits(in: .horizontal) {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:15:13: note: add 'if #available' version check
            ViewThatFits(in: .horizontal) {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:17: error: 'HStack' is only available in macOS 10.15 or newer
                HStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:17: note: add 'if #available' version check
                HStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:21: error: 'VStack' is only available in macOS 10.15 or newer
                    VStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:21: note: add 'if #available' version check
                    VStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: error: 'Spacer' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: error: 'Spacer' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: note: add 'if #available' version check
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: note: add 'if #available' version check
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: note: add 'if #available' version check
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: note: add 'if #available' version check
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:17: error: 'VStack' is only available in macOS 10.15 or newer
                VStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:17: note: add 'if #available' version check
                VStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: note: add 'if #available' version check
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: note: add 'if #available' version check
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:36:14: error: 'background(_:alignment:)' is only available in macOS 10.15 or newer
            .background(backgroundView)
             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:36:14: note: add 'if #available' version check
            .background(backgroundView)
             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: error: 'buildLimitedAvailability' is only available in macOS 11.0 or newer
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: note: add 'if #available' version check
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: note: add 'if #available' version check
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:37:16: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
        } else {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:37:16: note: add 'if #available' version check
        } else {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:25: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
    var body: some View {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:25: note: add 'if #available' version check
    var body: some View {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: error: 'ZStack' is only available in macOS 10.15 or newer
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: note: add 'if #available' version check
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:57:30: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                            .ignoresSafeArea()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:57:30: note: add 'if #available' version check
                            .ignoresSafeArea()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:59:30: error: 'resizable(capInsets:resizingMode:)' is only available in macOS 10.15 or newer
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:59:30: note: add 'if #available' version check
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:60:30: error: 'opacity' is only available in macOS 10.15 or newer
                            .opacity(0.1)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:60:30: note: add 'if #available' version check
                            .opacity(0.1)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:61:30: error: 'aspectRatio(_:contentMode:)' is only available in macOS 10.15 or newer
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:61:30: note: add 'if #available' version check
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:62:30: error: 'blur(radius:opaque:)' is only available in macOS 10.15 or newer
                            .blur(radius: 15)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:62:30: note: add 'if #available' version check
                            .blur(radius: 15)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:63:30: error: 'saturation' is only available in macOS 10.15 or newer
                            .saturation(0.8)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:63:30: note: add 'if #available' version check
                            .saturation(0.8)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: note: add 'if #available' version check
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: error: 'Color' is only available in macOS 10.15 or newer
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: note: add 'if #available' version check
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:69:26: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                        .ignoresSafeArea()
                         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:69:26: note: add 'if #available' version check
                        .ignoresSafeArea()
                         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: note: add 'if #available' version check
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:68: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:68: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: error: 'buildIf' is only available in macOS 10.15 or newer
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: note: add 'if #available' version check
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: note: add 'if #available' version check
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:72:9: error: 'buildIf' is only available in macOS 10.15 or newer
        }
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:72:9: note: add 'if #available' version check
        }
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:36: warning: conformance of 'Optional<Wrapped>' to 'View' is only available in macOS 10.15 or newer
    var backgroundView : some View {
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:36: note: add 'if #available' version check
    var backgroundView : some View {
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:20:39: error: 'identity' is only available in macOS 10.15 or newer
         transition: AnyTransition = .identity,
                                      ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:18:5: note: add @available attribute to enclosing initializer
    init(url: String,
    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:8: note: add @available attribute to enclosing generic struct
struct CachedImage<Content: View>: View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:55:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:55:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:54:8: note: add @available attribute to enclosing struct
struct FullScreenAdView_Previews: PreviewProvider {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:14:9: error: 'VStack' is only available in macOS 10.15 or newer
        VStack {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:14:9: note: add 'if #available' version check
        VStack {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:15:13: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:15:13: error: 'Spacer' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:16:13: error: 'HStack' is only available in macOS 10.15 or newer
            HStack {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:17:17: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:17:17: error: 'Spacer' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:19:22: error: 'padding' is only available in macOS 10.15 or newer
                    .padding(.bottom, 24)
                     ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:20:17: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:20:17: error: 'Spacer' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:16:20: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            HStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:16:20: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            HStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:22:13: error: 'Color' is only available in macOS 10.15 or newer
            Color.clear.frame(height: 48)
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:22:19: error: 'clear' is only available in macOS 10.15 or newer
            Color.clear.frame(height: 48)
                  ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:22:25: error: 'frame(width:height:alignment:)' is only available in macOS 10.15 or newer
            Color.clear.frame(height: 48)
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:14:16: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
        VStack {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:24:10: error: 'background(_:alignment:)' is only available in macOS 10.15 or newer
        .background(
         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:24:10: note: add 'if #available' version check
        .background(
         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:13: error: 'ZStack' is only available in macOS 10.15 or newer
            ZStack {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:13: note: add 'if #available' version check
            ZStack {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: note: add 'if #available' version check
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: error: 'ZStack' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:30:36: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:30:36: note: add 'if #available' version check
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: error: 'ProgressView' is only available in macOS 11.0 or newer
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: note: add 'if #available' version check
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: error: 'init()' is only available in macOS 11.0 or newer
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: note: add 'if #available' version check
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:32:34: error: 'tint' is only available in macOS 12.0 or newer
                                .tint(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:32:34: note: add 'if #available' version check
                                .tint(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:32: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:32: note: add 'if #available' version check
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:36:30: error: 'resizable(capInsets:resizingMode:)' is only available in macOS 10.15 or newer
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:36:30: note: add 'if #available' version check
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:37:30: error: 'aspectRatio(_:contentMode:)' is only available in macOS 10.15 or newer
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:37:30: note: add 'if #available' version check
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:38:30: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                            .ignoresSafeArea(.all)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:38:30: note: add 'if #available' version check
                            .ignoresSafeArea(.all)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: note: add 'if #available' version check
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: note: add 'if #available' version check
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: error: 'ZStack' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:41:36: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:41:36: note: add 'if #available' version check
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: error: 'Image' is only available in macOS 10.15 or newer
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: note: add 'if #available' version check
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: error: 'init(systemName:)' is only available in macOS 11.0 or newer
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: note: add 'if #available' version check
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:43:34: error: 'foregroundColor' is only available in macOS 10.15 or newer
                                .foregroundColor(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:43:34: note: add 'if #available' version check
                                .foregroundColor(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:32: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:32: note: add 'if #available' version check
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:72: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:72: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:17: error: 'LinearGradient' is only available in macOS 10.15 or newer
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:17: note: add 'if #available' version check
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:78: error: 'opacity' is only available in macOS 10.15 or newer
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:78: note: add 'if #available' version check
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:130: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                                                                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:130: note: add 'if #available' version check
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                                                                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: note: add 'if #available' version check
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
[25/25] Compiling Billboard FullScreenAdView.swift
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:31: error: 'View' is only available in macOS 10.15 or newer
    var backgroundView : some View {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:49:6: error: 'ViewBuilder' is only available in macOS 10.15 or newer
    @ViewBuilder
     ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:79:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:79:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:78:8: note: add @available attribute to enclosing struct
struct DefaultAdView_Previews: PreviewProvider {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:12: warning: result builder 'ViewBuilder' does not implement 'buildLimitedAvailability'; this code may crash on earlier versions of the OS
        if #available(iOS 16, *) {
           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:15:13: error: 'ViewThatFits' is only available in macOS 13.0 or newer
            ViewThatFits(in: .horizontal) {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:15:13: note: add 'if #available' version check
            ViewThatFits(in: .horizontal) {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:17: error: 'HStack' is only available in macOS 10.15 or newer
                HStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:17: note: add 'if #available' version check
                HStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:17:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:21: error: 'VStack' is only available in macOS 10.15 or newer
                    VStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:21: note: add 'if #available' version check
                    VStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: error: 'Spacer' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:21:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: error: 'Spacer' is only available in macOS 10.15 or newer
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:23:25: note: add 'if #available' version check
                        Spacer()
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: note: add 'if #available' version check
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:20:28: note: add 'if #available' version check
                    VStack {
                           ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:25:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: note: add 'if #available' version check
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:16:24: note: add 'if #available' version check
                HStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:17: error: 'VStack' is only available in macOS 10.15 or newer
                VStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:17: note: add 'if #available' version check
                VStack {
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:29:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: error: 'Spacer' is only available in macOS 10.15 or newer
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:32:21: note: add 'if #available' version check
                    Spacer()
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: note: add 'if #available' version check
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:28:24: note: add 'if #available' version check
                VStack {
                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:36:14: error: 'background(_:alignment:)' is only available in macOS 10.15 or newer
            .background(backgroundView)
             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:36:14: note: add 'if #available' version check
            .background(backgroundView)
             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: error: 'buildLimitedAvailability' is only available in macOS 11.0 or newer
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: note: add 'if #available' version check
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:14:34: note: add 'if #available' version check
        if #available(iOS 16, *) {
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:37:16: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
        } else {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:37:16: note: add 'if #available' version check
        } else {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:25: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
    var body: some View {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:25: note: add 'if #available' version check
    var body: some View {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:13: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: error: 'ZStack' is only available in macOS 10.15 or newer
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: note: add 'if #available' version check
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:57:30: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                            .ignoresSafeArea()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:57:30: note: add 'if #available' version check
                            .ignoresSafeArea()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:59:30: error: 'resizable(capInsets:resizingMode:)' is only available in macOS 10.15 or newer
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:59:30: note: add 'if #available' version check
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:60:30: error: 'opacity' is only available in macOS 10.15 or newer
                            .opacity(0.1)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:60:30: note: add 'if #available' version check
                            .opacity(0.1)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:61:30: error: 'aspectRatio(_:contentMode:)' is only available in macOS 10.15 or newer
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:61:30: note: add 'if #available' version check
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:62:30: error: 'blur(radius:opaque:)' is only available in macOS 10.15 or newer
                            .blur(radius: 15)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:62:30: note: add 'if #available' version check
                            .blur(radius: 15)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:63:30: error: 'saturation' is only available in macOS 10.15 or newer
                            .saturation(0.8)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:63:30: note: add 'if #available' version check
                            .saturation(0.8)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:55:21: note: add 'if #available' version check
                    ZStack {
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: error: 'Color' is only available in macOS 10.15 or newer
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: note: add 'if #available' version check
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:69:26: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                        .ignoresSafeArea()
                         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:69:26: note: add 'if #available' version check
                        .ignoresSafeArea()
                         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:68:21: note: add 'if #available' version check
                    Color(hex: advert.backgroundColor)
                    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:68: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:52:68: note: add 'if #available' version check
            CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: error: 'buildIf' is only available in macOS 10.15 or newer
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: note: add 'if #available' version check
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:51:31: note: add 'if #available' version check
        if advert.transparent {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:72:9: error: 'buildIf' is only available in macOS 10.15 or newer
        }
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:72:9: note: add 'if #available' version check
        }
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:36: warning: conformance of 'Optional<Wrapped>' to 'View' is only available in macOS 10.15 or newer
    var backgroundView : some View {
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:36: note: add 'if #available' version check
    var backgroundView : some View {
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:50:9: note: add @available attribute to enclosing property
    var backgroundView : some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/DefaultAdView.swift:10:8: note: add @available attribute to enclosing struct
struct DefaultAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:20:39: error: 'identity' is only available in macOS 10.15 or newer
         transition: AnyTransition = .identity,
                                      ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:18:5: note: add @available attribute to enclosing initializer
    init(url: String,
    ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/CachedImage/CachedImage.swift:10:8: note: add @available attribute to enclosing generic struct
struct CachedImage<Content: View>: View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:20: error: 'View' is only available in macOS 10.15 or newer
    var body: some View {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:55:31: error: 'View' is only available in macOS 10.15 or newer
    static var previews: some View {
                              ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:55:16: note: add @available attribute to enclosing static property
    static var previews: some View {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:54:8: note: add @available attribute to enclosing struct
struct FullScreenAdView_Previews: PreviewProvider {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:14:9: error: 'VStack' is only available in macOS 10.15 or newer
        VStack {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:14:9: note: add 'if #available' version check
        VStack {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:15:13: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:15:13: error: 'Spacer' is only available in macOS 10.15 or newer
            Spacer()
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:16:13: error: 'HStack' is only available in macOS 10.15 or newer
            HStack {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:17:17: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:17:17: error: 'Spacer' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:19:22: error: 'padding' is only available in macOS 10.15 or newer
                    .padding(.bottom, 24)
                     ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:20:17: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:20:17: error: 'Spacer' is only available in macOS 10.15 or newer
                Spacer()
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:16:20: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            HStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:16:20: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
            HStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:22:13: error: 'Color' is only available in macOS 10.15 or newer
            Color.clear.frame(height: 48)
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:22:19: error: 'clear' is only available in macOS 10.15 or newer
            Color.clear.frame(height: 48)
                  ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:22:25: error: 'frame(width:height:alignment:)' is only available in macOS 10.15 or newer
            Color.clear.frame(height: 48)
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:14:16: warning: conformance of 'Spacer' to 'View' is only available in macOS 10.15 or newer
        VStack {
               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:24:10: error: 'background(_:alignment:)' is only available in macOS 10.15 or newer
        .background(
         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:24:10: note: add 'if #available' version check
        .background(
         ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:13: error: 'ZStack' is only available in macOS 10.15 or newer
            ZStack {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:13: note: add 'if #available' version check
            ZStack {
            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: note: add 'if #available' version check
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:17: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: error: 'ZStack' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:30:36: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:30:36: note: add 'if #available' version check
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: error: 'ProgressView' is only available in macOS 11.0 or newer
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: note: add 'if #available' version check
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: error: 'init()' is only available in macOS 11.0 or newer
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:31:29: note: add 'if #available' version check
                            ProgressView()
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:32:34: error: 'tint' is only available in macOS 12.0 or newer
                                .tint(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:32:34: note: add 'if #available' version check
                                .tint(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:32: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:32: note: add 'if #available' version check
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:29:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:36:30: error: 'resizable(capInsets:resizingMode:)' is only available in macOS 10.15 or newer
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:36:30: note: add 'if #available' version check
                            .resizable()
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:37:30: error: 'aspectRatio(_:contentMode:)' is only available in macOS 10.15 or newer
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:37:30: note: add 'if #available' version check
                            .aspectRatio(contentMode: .fill)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:38:30: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                            .ignoresSafeArea(.all)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:38:30: note: add 'if #available' version check
                            .ignoresSafeArea(.all)
                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: error: 'buildEither(first:)' is only available in macOS 10.15 or newer
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: note: add 'if #available' version check
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:35:25: note: add 'if #available' version check
                        image
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: error: 'ZStack' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:41:36: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:41:36: note: add 'if #available' version check
                            advert.background
                                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: error: 'Image' is only available in macOS 10.15 or newer
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: note: add 'if #available' version check
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: error: 'init(systemName:)' is only available in macOS 11.0 or newer
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:42:29: note: add 'if #available' version check
                            Image(systemName: "bolt.slash.fill")
                            ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:43:34: error: 'foregroundColor' is only available in macOS 10.15 or newer
                                .foregroundColor(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:43:34: note: add 'if #available' version check
                                .foregroundColor(advert.tint)
                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:32: warning: conformance of 'Color' to 'View' is only available in macOS 10.15 or newer
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:32: note: add 'if #available' version check
                        ZStack {
                               ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: error: 'buildEither(second:)' is only available in macOS 10.15 or newer
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:40:25: note: add 'if #available' version check
                        ZStack {
                        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:72: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
                CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:26:72: note: add 'if #available' version check
                CachedImage(url: advert.media.absoluteString, content: { phase in
                                                                       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:17: error: 'LinearGradient' is only available in macOS 10.15 or newer
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:17: note: add 'if #available' version check
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:78: error: 'opacity' is only available in macOS 10.15 or newer
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:78: note: add 'if #available' version check
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                             ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:130: error: 'ignoresSafeArea(_:edges:)' is only available in macOS 11.0 or newer
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                                                                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:47:130: note: add 'if #available' version check
                LinearGradient(colors: [advert.background, advert.background.opacity(0.1)], startPoint: .bottom, endPoint: .top).ignoresSafeArea(.all)
                                                                                                                                 ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: warning: conformance of '_ConditionalContent<TrueContent, FalseContent>' to 'View' is only available in macOS 10.15 or newer
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:25:20: note: add 'if #available' version check
            ZStack {
                   ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:13:9: note: add @available attribute to enclosing property
    var body: some View {
        ^
/Users/builder/builds/UKfvDsi8u/1/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/Billboard/Views/FullScreenAdView.swift:10:8: note: add @available attribute to enclosing struct
struct FullScreenAdView : View {
       ^
error: fatalError
BUILD FAILURE 5.10 macosSpm