Xcode 26 Crashes on Launching App After macOS + Xcode Update (M3 Mac)

Developer Tools & Services Xcode
hajhouj OP
Created 3w
Replies 6
Boosts 2
Views 492
Participants 3

Hi everyone,

After updating my Mac and Xcode to 26, I’m running into a consistent crash whenever I try to launch an app from Xcode.

Environment:

  • Mac: Apple Silicon M3
  • macOS: 26.0 (25A354)
  • Xcode: 26.0.1 (17A400)

Issue:

When I press Run on any project (including new, empty projects), Xcode immediately crashes. This started only after updating to the latest macOS and Xcode.

Crash details:

The crash log shows:

Application Specific Signatures:
___localError
Thread 0 crashed inside -[IDEScheme _executionOperationForSchemeOperationParameters:...] from IDEFoundation/IDEKit.

I also noticed background threads calling DVTPortal (developer portal requests) right before the crash.

What I’ve tried so far:

  • Cleared DerivedData, ModuleCache.noindex, and Xcode caches.
  • Signed out/in of my Apple ID in Xcode.
  • Recreated project schemes.
  • Verified provisioning profiles.
  • Reinstalled Xcode 26.

Unfortunately, the crash still happens. Question: Is this a known issue with Xcode 26 on Apple Silicon (M3)? Has anyone seen a workaround? Any guidance would be greatly appreciated — I can’t currently launch apps in Xcode at all. Thanks!

Replies  6
Boosts  2
Views  492
Participants  3
xpl0re3 OP
3w

Hi there! Can you please file a bug report for this issue through Feedback Assistant? Make sure to attach a sysdiagnose so that we can investigate on our side. Once you have filed it, please update this post with the FB number.

0
hajhouj OP
3w

I sent the bug report, FB number : FB20349158

0
hajhouj OP
3w

I sent a bug report through the Feedback Assistant: FB20349158

0
hajhouj OP
3w

FB20349158

0
hajhouj OP
3w

any workaround to bypass the issue, I am on an urgent project, and I don't what to do actually?

0
DTS Engineer OP
Apple
3w

You can see the status of your feedback in Feedback Assistant. There, you can track if the report is still being investigated, has a potential identifiable fix, or has been resolved in another way. The status appears beside the label "Resolution." We're unable to share any updates on specific reports on the forums.

For more details on when you'll see updates to your report, please see What to expect after submission.

Albert Pascual
  Worldwide Developer Relations.

0
Xcode 26 Crashes on Launching App After macOS + Xcode Update (M3 Mac)
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