Xcode 12 beta 4 crashing on launch, Intel Big Sur beta 3

Developer Tools & Services Xcode
bwebster OP
Created Aug ’20
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I just downloaded Xcode 12 beta 4 and it crashes every time on launch for me on my Intel iMac. I tried deleting my prefs, derived data, and ~/Library/Developer/Xcode/UserData, as well as running from a separate user account, and it crashes every time with the below stack trace. The same version of Xcode launches fine on my DTK. Anyone else seeing this?

Xcode crash log


Replies  2
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bwebster OP
Aug ’20
I updated to Big Sur beta 4, and I still get this crash. I've filed it with Apple as feedback FB8264823
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OnionSource OP
Aug ’20
I am having a lot of issues with Xcode vanishing, it is not even reporting a crash, just disappears. Not doing anything complex, just small projects with basic Swift & SwiftUI. It has only started happening with Beta 4, had no issues previously.

  • Xcode Version 12.0 beta 4 (12A8179i)

  • macOS Big Sur 11.0 Beta 4 (20A5343i)

  • macBook Pro 16

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Xcode 12 beta 4 crashing on launch, Intel Big Sur beta 3
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