You'd better ask on Apple support forum: https://discussions.apple.com/welcome Here is a forum for technical questions for app development, not for product related questions. Good luck.

@Sonseyeon Is it a test ? Is it a joke ? In any case that's a poor first post on the forum. Welcome here however.

You declare dummyWindow inside a function. It is destroyed when you leave the appDidFinishLaunching, even though the window remains on display. Try declaring dummyWindow at the top level.

Just add comments. See here how to add documentation: https://developer.apple.com/documentation/xcode/writing-symbol-documentation-in-your-source-files

Welcome to the forum. You wrote 1 / 30. The / is apparently a forbidden character. Replace by 1 - 30.

Welcome to the forum. The version reference (1015.7) you give is a bit bizarre. And you likely misread it. You probably have Catalina which is 10.15.7 (the latest MacOS 10 version). But it is much older than MacOS 14. Hence the message you get is logical. Which Mac have you got, to see if it can support MacOS 14 ?

Dans un tel cas, je ne fierais pas à un auto sur Internet… Mais je contacterais le support (en demandant un contact téléphone). Autre option: attendre la release iOS 18, charger les prochaines betas et vivre avec les bugs en attendant. PS: c'est toujours risqué d'installer des betas sur un iPhone de travail.

Did you try to implement it in AppDelegate function: func applicationWillTerminate(_ application: UIApplication) { // call delete session api }

Is it an iOS app ? It seems that SCDynamicStoreCreate is (was?) not available for iOS. Could it be the reason ? https://stackoverflow.com/questions/42998035/scdynamicstorecreate-is-unavailable-not-available-on-ios

Could this help: https://stackoverflow.com/questions/34440512/enumerating-directories-iteratively-in-postorder or at least give a direction for searching ?

You should file a bug report. It may ring a bell. Who knows.

Almost all of my views have the background color set to "System background color" Does the problem also occur in those views ?   is in dark mode, which I don't use what do you mean ? what do you do to manage dark/light mode ?

Problem solved programmatically. So I close the thread.

There are a lot of tutorials in Apple's Library. Get there, search for Swift. You may start with "Intro to app development with Swift". It may be based on an older version of Xcode, but the basics are still the same. If you want to start with SwiftUI, you could look here: https://developer.apple.com/tutorials/app-dev-training/getting-started-with-scrumdinger

Did you try this ? https://support.apple.com/en-us/118106 Make sure that your Mac is up to date. If you're using a PC, make sure you have the latest version of the Apple Devices app or iTunes. Connect your device to your computer with a USB cable. Open the Finder on your Mac, or open the Apple Devices app on your PC. If your PC doesn't have the Apple Devices app, or your Mac is using macOS Mojave or earlier, open iTunes instead. Keep your device connected and wait until the Connect to computer screen appears. iPhone 8 or later, including iPhone SE (2nd generation and later): Press and quickly release the volume up button. Press and quickly release the volume down button. Then, press and hold the side button until you see the Connect to computer screen. An animation of an iPhone with arrows pointing to the Volume Up button, then to the Volume Down button, and then to the side button.