Are you using third party frameworks ? With which version of Xcode was the project created ? Have you looked at the issues Navigator (left pane in Xcode) to see if you have warnings to update to new settings ? If so, update, then clean build folder and restart Xcode. Try again to build again. If you still have the problem, create a phony new project, and try to build. What do you get ?

I have the same error in a new project Is it a Swift/UIKit project (not SwiftUI) ? Is it a new project without framework, just create and run ? If so, problem likely comes from your config. May try to load XCode13ß5, just available.

When you post code, please format code in a more readable way and use code formatter, such as: struct NavigationIndicator: UIViewControllerRepresentable { typealias UIViewControllerType = ARVieww func makeUIViewController(context: Context) -> ARVieww { return ARVieww() } func updateUIViewController(_ uiViewController: NavigationIndicator.UIViewControllerType, context: UIViewControllerRepresentableContext) { } } Where exactly do you get the crash ?

Yes, it may be a question of how fast you lift the finger. See discussion here: https://stackoverflow.com/questions/10325776/touchescancelled-is-called-instead-of-touchesended The best is probably to call the same code for touchesEnded and touchesCancelled.

I am confused on which path to head down : SwiftUI or Appkit. I (personal opinion) recommend to stay with Appkit. Because of maturity of SwiftUI and because it introduces another layer that make things even more complex. Here a a good tutorial series to start: h t t p s : / / w w w .raywenderlich.com/731-macos-development-for-beginners-part-1 h t t p s : / / w w w .raywenderlich.com/730-macos-development-for-beginners-part-2 h t t p s : / / w w w .raywenderlich.com/729-macos-development-for-beginners-part-3 And this, it's an old document (2013) but very detailed: https://developer.apple.com/library/archive/referencelibrary/GettingStarted/RoadMapOSX/chapters/01_Introduction.html

That's not where the error is. It is just the place where debugger returns after crash. You have to find where is the crash, for instance by adding some print statements at the place of last action before crash.

You define the equation parameters for movement. Can't you compute when it stops bouncing ? I agree that may be complicated. But maybe some estimate ?

A way would be to observe velocity. When it is zero, object is at rest. You need to detect it is really at rest and not just bouncing, by reading velocity at 2 close time points. There is even a simpler way: use isResting property. This property is automatically set to true by the physics simulation when it determines that the body is at rest. This means that the body is at rest on another body in the system. Resting bodies do not participate in the physics simulation until an impulse is applied to the object or another object collides with it. This improves the performance of the physics simulation. If all bodies in the world are resting, the entire simulation is at rest, reducing the number of calculations that are performed by the physics world.

Can't you save metaData separately and use those you need later ?

Seems others have experienced the same issue: https://developer.apple.com/forums/thread/684475 Did you file a bug report ?

When using acronyms, it's good to explicit "Progressive Web App"

You put the prepare in the wrong class. override func prepare(for segue: UIStoryboardSegue, sender: Any?) { // Get the new view controller using segue.destination. // Pass the selected object to the new view controller. if let quoteViewController = segue.destination as? QuoteDetailViewController { if let selectedQuote = sender as? String { quoteViewController.quote = selectedQuote } } } It should be in the QuoteTableViewController and not in QuoteDetailViewController. I changed and now one get the label. In fact, there is no segue from QuoteDetailViewController. Note: the code on GitHub is quoteViewController.quote = selectedQuote not quoteViewController.title = selectedQuote Just change and get :

I do not fully understand what you've entered in the AppstoreConnect so far…     At what stage of submission process do you get the error ?    In such a case, I would contact support (phone or web) to ask for advice.     https://developer.apple.com/contact

Device Management is when you are in a MDDM environment. If the problem is the same as for the initial post, you should open the project in Xcode, select the project name (blue icon), select "TARGEYS" go to signing and capabilities Tab and check information there.

There is no such initialiser. But UIWebView has: https://stackoverflow.com/questions/32808901/svg-url-to-uiimage-ios https://stackoverflow.com/questions/35691839/how-to-display-svg-image-using-swift