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App Stuck on Launch Screen When Debugging on iOS 18.5 Device with Xcode 16.3

Developer Tools & Services Xcode
terenceNO1
terenceNO1 OP
Created May ’25
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I am using a Mac computer running macOS 15.5 with Xcode version 16.3 (16E140) and an iPhone XS Max on iOS 18.5. When debugging my app on the real device using Xcode, the app gets stuck on the launch screen and fails to proceed to the main interface. There is no output in the Xcode console, and the top of the window continuously shows "attaching to [app name] on [iPhone name]". Here are the details:

  1. The same issue occurred when the phone was running iOS 18.4.1.
  2. When I tested on another real device running iOS 17, the app launched and ran normally.
  3. I’ve tried clearing the cache, but it didn’t help.
  4. I deleted the ~/Library/Developer/Xcode/iOS DeviceSupport folder, let it re-download the necessary files, and ran the app again, but the issue persists.

I’m currently out of ideas and would appreciate any assistance.

Replies  1
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Views  92
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darkpaw
darkpaw OP
May ’25

Does it work when using the iOS Simulator on 18.4.1? How about a Simulator on 18.5? And one on 17?

It might be your real device that has an issue, since you've said:

  • It doesn't work on your device on iOS 18.5.
  • It doesn't work on your device on iOS 18.4.1.
  • It works on a different device on iOS 17.

You haven't proven that it's not your device causing it, so try the other options, and see what happens.

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App Stuck on Launch Screen When Debugging on iOS 18.5 Device with Xcode 16.3
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