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!