How do I solve a SwiftUI view-constraint conflict?

Question

I'm toying around with an image display within SwiftUI and decided to attach an Alert to activate if an image can't be found.

The following is the abridge code:

struct ContentView: View {
    ...
    @State var image: URLImage = URLImage()
    ...
    @State var showActionSheet = true

    var body: some View {
        ZStack {
            Color.green
            NavigationView {
                VStack {
                    Button(action: {
                        self.url = "https://xxxx.org/\(Int.random(in: 0 ..< 10)).png"
                        self.image.imageLoader.load(url: URL(string: self.url)!)
                    }) {
                        Text("Get Random Image")
                    }
                    image.actionSheet(isPresented: $showActionSheet) {
                        ActionSheet(title: Text("Action Time"), message: Text("Greetings Ric!"), buttons:
                            [.default(Text("First Button"), action: {
                                print("First Button")
                        })])
                    }
                }.navigationBarTitle(Text("Ric's Images"))
            }
        }
    }
}

When I set the 'showAlertSheet' flag to 'true', I get the alert but also the compiler's constraint complaint:

2019-11-25 12:41:21.628064-0800 GetImages[32413:1078621] [LayoutConstraints] Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. ( "" )

Will attempt to recover by breaking constraint

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in may also be helpful.

The constraints are auto-generated.
How do I solve this?