Re: Xcode 11 unusable?


 

I assume this happens in any Xcode project and not just your own?

Open Console.app and check various logs to see if anything Xcode-related is being dumped.
Sample Xcode (using Activity Monitor or the 'sample' tool) and see if it's spending a ton of time in something suspicious-looking.
Definitely submit a bug report to Apple. The Feedback app will collect a profile.

—Jens

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