Couldn't communicate with a helper application

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I upgraded my OSX to macOS Big Sur version 11.1. Ever since I got this problem when trying to sign in in Xcode:

enter image description here

at the time I had an earlier version of xcode (12.2). I upgraded to Xcode 12.3 and the problem disappeared but then I came back up again. What can I do to fix this?

What I tried

  • rebooting in safe mode, didn't help
  • upgrading Xcode, solved the problem temporarily
  • tried to rebuild the dynamic link editor cache as suggested here but it was a dead end:
sudo update_dyld_shared_cache –force 
This tool is deprecated.
0 Answers
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