You should read the document of the Timer. The timer need to run in a runloop, which Window has but menu hasn't. So if you want to use a timer inside the menu, you may need to create a runloop and add the timer to it. That might work.

This is not a meaningless issue. This will cause unexpected behavior like error alert doesn't show in SwiftUI. If you encounter the same like me. You can get the window and make it key and front to fix this issue. I used https://github.com/happycodelucky/SwiftUIWindowBinder to get the NSWindow. And used below func to make it key and front. var body: some View { WindowBinder(window: $window) { // content view } .onAppear { makeKeyAndFront() } } private func makeKeyAndFront() { if let window { window.makeKeyAndOrderFront(nil) } else { DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(100)) { makeKeyAndFront() } } }

I have a workaround. Get Critical Alert Permission from User instead of Apple https://zhaoxin.pro/16703819971617.html

Still the same with Xcode 13.2.1 (13C100).

Oddly enough, I found that App Store accepted my app in iOS/iPadOS while it rejected the macOS version with the same core. Both of them shared the same core. So there was also a "libswift_Concurrency.dylib" in iOS version, but it was accepted.

The same issue here. However, I can get my app notarized. So just no App Store.

The error message was totally misleading. At the very beginning to debug an Apple Watch app, we should use target of the WatchKit Extension. However, I didn't know since when, to debug we should use the Watch App target instead of the WatchKit Extension.