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Build Information

Failed to build SwiftUINavigator 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

========================================
RunAll
========================================
Builder version: 4.29.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/insub4067/SwiftUINavigator.git
Reference: main
Initialized empty Git repository in /Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/insub4067/SwiftUINavigator
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 73fcf9b Update README.md
Cloned https://github.com/insub4067/SwiftUINavigator.git
Revision (git rev-parse @):
73fcf9b568f4d1368fd58be89db7ebb5cb6e18d3
SUCCESS checkout https://github.com/insub4067/SwiftUINavigator.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $workDir
https://github.com/insub4067/SwiftUINavigator.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--423B1241ED78D482.txt
[3/9] Compiling SwiftUINavigator UIViewController+functional.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/9] Compiling SwiftUINavigator Navigator.swift
[5/9] Compiling SwiftUINavigator UIViewController+indentifier.swift
[6/9] Compiling SwiftUINavigator UIViewController+.swift
[7/9] Emitting module SwiftUINavigator
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:13:20: error: cannot find type 'Navigator' in scope
    var navigator: Navigator? { get set }
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:28: error: 'View' is only available in macOS 10.15 or newer
public protocol Wrappable: View {
                           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:17: note: add @available attribute to enclosing protocol
public protocol Wrappable: View {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:21:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil,
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:23: error: cannot find 'UIHostingController' in scope
    var hController = UIHostingController<Content?>(rootView: nil)
                      ^~~~~~~~~~~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:63: error: 'nil' requires a contextual type
    var hController = UIHostingController<Content?>(rootView: nil)
                                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:15:20: error: cannot find type 'Navigator' in scope
    let navigator: Navigator
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:20:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:37:26: error: method does not override any method from its superclass
    public override func viewDidAppear(_ animated: Bool) {
           ~~~~~~~~      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:11:57: error: cannot find type 'UIViewController' in scope
public class WrapperViewController<Content: Wrappable>: UIViewController {
                                                        ^~~~~~~~~~~~~~~~
[8/9] Compiling SwiftUINavigator Wrappable.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:13:20: error: cannot find type 'Navigator' in scope
    var navigator: Navigator? { get set }
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:28: error: 'View' is only available in macOS 10.15 or newer
public protocol Wrappable: View {
                           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:17: note: add @available attribute to enclosing protocol
public protocol Wrappable: View {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:21:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil,
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:20:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:30: error: extra arguments at positions #1, #2, #3 in call
        WrapperViewController(
                             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:33:14: note: 'init(coder:)' declared here
    required init?(coder: NSCoder) {
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:25:13: error: missing argument for parameter 'coder' in call
            content: self,
            ^
            coder: <#NSCoder#>,
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:33:14: note: 'init(coder:)' declared here
    required init?(coder: NSCoder) {
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:9: error: value of optional type 'WrapperViewController<Self>?' must be unwrapped to a value of type 'WrapperViewController<Self>'
        WrapperViewController(
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:9: note: coalesce using '??' to provide a default when the optional value contains 'nil'
        WrapperViewController(
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:9: note: force-unwrap using '!' to abort execution if the optional value contains 'nil'
        WrapperViewController(
        ^
[9/9] Compiling SwiftUINavigator WrapperViewController.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:23: error: cannot find 'UIHostingController' in scope
    var hController = UIHostingController<Content?>(rootView: nil)
                      ^~~~~~~~~~~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:63: error: 'nil' requires a contextual type
    var hController = UIHostingController<Content?>(rootView: nil)
                                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:15:20: error: cannot find type 'Navigator' in scope
    let navigator: Navigator
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:20:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:37:26: error: method does not override any method from its superclass
    public override func viewDidAppear(_ animated: Bool) {
           ~~~~~~~~      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:11:57: error: cannot find type 'UIViewController' in scope
public class WrapperViewController<Content: Wrappable>: UIViewController {
                                                        ^~~~~~~~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:22:26: error: cannot find 'Navigator' in scope
        self.navigator = Navigator()
                         ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:13:20: error: cannot find type 'Navigator' in scope
    var navigator: Navigator? { get set }
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:25:9: error: 'super' members cannot be referenced in a root class
        super.init(nibName: nil, bundle: nil)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:27:14: error: value of type 'WrapperViewController<Content>' has no member 'identifier'
        self.identifier = indentifier
        ~~~~ ^~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:28:14: error: value of type 'WrapperViewController<Content>' has no member 'view'
        self.view.backgroundColor = backgroundColor ?? .systemBackground
        ~~~~ ^~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:38:9: error: 'super' members cannot be referenced in a root class
        super.viewDidAppear(animated)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:46:24: error: cannot infer contextual base in reference to member 'init'
        hController = .init(rootView: content)
                      ~^~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:47:49: error: value of type 'WrapperViewController<Content>' has no member 'view'
        hController.view.backgroundColor = self.view.backgroundColor
                                           ~~~~ ^~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:48:9: error: cannot find 'addChildAndSubView' in scope
        addChildAndSubView(hController)
        ^~~~~~~~~~~~~~~~~~
error: fatalError
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version--423B1241ED78D482.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/4] Emitting module SwiftUINavigator
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:13:20: error: cannot find type 'Navigator' in scope
    var navigator: Navigator? { get set }
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:28: error: 'View' is only available in macOS 10.15 or newer
public protocol Wrappable: View {
                           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:17: note: add @available attribute to enclosing protocol
public protocol Wrappable: View {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:21:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil,
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:23: error: cannot find 'UIHostingController' in scope
    var hController = UIHostingController<Content?>(rootView: nil)
                      ^~~~~~~~~~~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:63: error: 'nil' requires a contextual type
    var hController = UIHostingController<Content?>(rootView: nil)
                                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:15:20: error: cannot find type 'Navigator' in scope
    let navigator: Navigator
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:20:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:37:26: error: method does not override any method from its superclass
    public override func viewDidAppear(_ animated: Bool) {
           ~~~~~~~~      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:11:57: error: cannot find type 'UIViewController' in scope
public class WrapperViewController<Content: Wrappable>: UIViewController {
                                                        ^~~~~~~~~~~~~~~~
[3/4] Compiling SwiftUINavigator WrapperViewController.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:23: error: cannot find 'UIHostingController' in scope
    var hController = UIHostingController<Content?>(rootView: nil)
                      ^~~~~~~~~~~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:13:63: error: 'nil' requires a contextual type
    var hController = UIHostingController<Content?>(rootView: nil)
                                                              ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:15:20: error: cannot find type 'Navigator' in scope
    let navigator: Navigator
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:20:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:37:26: error: method does not override any method from its superclass
    public override func viewDidAppear(_ animated: Bool) {
           ~~~~~~~~      ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:11:57: error: cannot find type 'UIViewController' in scope
public class WrapperViewController<Content: Wrappable>: UIViewController {
                                                        ^~~~~~~~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:22:26: error: cannot find 'Navigator' in scope
        self.navigator = Navigator()
                         ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:13:20: error: cannot find type 'Navigator' in scope
    var navigator: Navigator? { get set }
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:25:9: error: 'super' members cannot be referenced in a root class
        super.init(nibName: nil, bundle: nil)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:27:14: error: value of type 'WrapperViewController<Content>' has no member 'identifier'
        self.identifier = indentifier
        ~~~~ ^~~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:28:14: error: value of type 'WrapperViewController<Content>' has no member 'view'
        self.view.backgroundColor = backgroundColor ?? .systemBackground
        ~~~~ ^~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:38:9: error: 'super' members cannot be referenced in a root class
        super.viewDidAppear(animated)
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:46:24: error: cannot infer contextual base in reference to member 'init'
        hController = .init(rootView: content)
                      ~^~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:47:49: error: value of type 'WrapperViewController<Content>' has no member 'view'
        hController.view.backgroundColor = self.view.backgroundColor
                                           ~~~~ ^~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:48:9: error: cannot find 'addChildAndSubView' in scope
        addChildAndSubView(hController)
        ^~~~~~~~~~~~~~~~~~
[4/4] Compiling SwiftUINavigator Wrappable.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:13:20: error: cannot find type 'Navigator' in scope
    var navigator: Navigator? { get set }
                   ^~~~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:28: error: 'View' is only available in macOS 10.15 or newer
public protocol Wrappable: View {
                           ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:11:17: note: add @available attribute to enclosing protocol
public protocol Wrappable: View {
                ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:21:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil,
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:20:26: error: cannot find type 'UIColor' in scope
        backgroundColor: UIColor? = nil
                         ^~~~~~~
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:30: error: extra arguments at positions #1, #2, #3 in call
        WrapperViewController(
                             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:33:14: note: 'init(coder:)' declared here
    required init?(coder: NSCoder) {
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:25:13: error: missing argument for parameter 'coder' in call
            content: self,
            ^
            coder: <#NSCoder#>,
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/WrapperViewController.swift:33:14: note: 'init(coder:)' declared here
    required init?(coder: NSCoder) {
             ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:9: error: value of optional type 'WrapperViewController<Self>?' must be unwrapped to a value of type 'WrapperViewController<Self>'
        WrapperViewController(
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:9: note: coalesce using '??' to provide a default when the optional value contains 'nil'
        WrapperViewController(
        ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/Sources/SwiftUINavigator/Wrappable.swift:24:9: note: force-unwrap using '!' to abort execution if the optional value contains 'nil'
        WrapperViewController(
        ^
error: fatalError
BUILD FAILURE 5.10 macosSpm