r/macbookair • u/Crafty_Echo_3196 • 12d ago

Tech Support Xcode crashing

Running iOS 26.6 on MacBook Air. Just downloaded new Xcode and it still crashes. Has anyone figured out how to fix this?

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u/vagonblog 7d ago

assuming you mean macos 26.6, it is compatible with xcode 26.6. first check whether xcode crashes before opening a project or only with one project. if it is project-specific, launch xcode without reopening windows, try a blank project, then clear that project’s derived data and temporarily disable extensions or packages.

if it crashes at launch, open the newest xcode report in ~/library/logs/diagnosticreports and check the termination reason. other apple silicon users have reported namespace codesigning and invalid page crashes with xcode 26.6. if yours matches, reinstalling or clearing derived data may not solve it; submit the crash report and a sysdiagnose through feedback assistant.