Find out what is causing the crash, and fix it! If you post your code here, people may be able to help. Otherwise, we're just guessing.

Your mouse image is called "Idle_0.png". Your code says let mouse = SKSpriteNote(imageNamed: "idle_0.png" The clue is that the error message says Error loading image resource: "idle_0.png" Fix the capitalizition error, and you should be good to go.

How did you get on with this question on Stack Overflow?

I don't know how to solve your issue, but perhaps this clue will help... In SwiftUI, a ViewBuilder is limited to a maximum of 10 Views. It looks like there may be a similar limit to filters? I found your code a bit confusing (json doesn't seem to have any relevance), but I suspect there may be a more elegant solution. Would you like to post a bit more about what you are trying to achieve, and how (and why)?

Have you considered rewriting it as a method that tests each Bool individually, and returns the overall Bool result? Perhaps something like... func include() -> Bool { if !filters.showhjertestarterOnly || havneplan.hjertestarter { return true } if !filters.showpaabroerneOnly || havneplan.paabroerne { return true } /// And so on, through your 47 Bools... return false }

MVVM, where: Model is value types (structs) Views are value types (SwiftUI Views) ViewModel is a reference type (a class), so it can be passed around the app, and an ObservableObject (so Views can respond to changes)

It's not just Xcode. This is now a system setting, for full-screen apps. System Preferences > Dock & Menu Bar > Automatically hide and show the menu bar in full screen

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No. (At least, not for users of the Forum)

This is called the "Minimap". The menu for this in on an icon at the top-right of Xcode... (the middle of the three lower buttons, in the screenshot.)

You are declaring "tagUID" in a class, so you should not be using the @State property wrapper (which is for SwiftUI). Try removing the "@State"... just use: var tagUID = "UID" Or since your NFCReader is an ObservableObject, you may mean: @Published var tagUID = "UID"

Did that fix it for you, @MrMajorThorburn?

Interestingly, if I add another modifier to the first Rectangle, the fade-in works! Rectangle() .fill( fade ? .red : .blue) .frame(width: 100, height: 100, alignment: .center) .opacity(fade ? 0 : 1) SwiftUI can only animate viewModifiers for Views that are already on-screen. I think what is happening is that when the opacity is set to 0, SwiftUI removes that view from the screen... ...so it's re-appearance (on setting opacity to 1) is not animated. As a test, try fading out, but not right to 0: .opacity(fade ? 0.1 : 1) This seems to work.

We can't do much with a screenshot of a tiny sample of your code, and truncated error messages! Please post more code, in a code block, using "Paste & Match Style" (to preserve formatting). Also post the error messages, in full.

The error message should be self explanatory? In SwiftUI, you can not just write arbitrary code, when a View is expected. Remember that you are declaring a UI. Try replacing your "for" loop with this SwiftUI code: ForEach(cities, id: \.self) { city in Text("City: \(city)") }