XCode cannot be opened

apple M1 After upgrading the computer system to macOS Tahone 26.6.2, xcode cannot be opened after 26.6 Uninstalling and reinstalling many times

Below is the error message:


Translated Report (Full Report Below)

Process: Xcode [1677] Path: /Applications/Xcode.app/Contents/MacOS/Xcode Identifier: com.apple.dt.Xcode Version: 26.6 (24959) Build Info: IDEApplication-24959000000000000~2 (17F113) Code Type: ARM-64 (Native) Role: Default Parent Process: launchd [1] Coalition: com.apple.dt.Xcode [1129] User ID: 501

Date/Time: 2026-08-21 17:37:38.0175 +0800 Launch Time: 2026-08-21 17:37:37.8768 +0800 Hardware Model: Macmini9,1 OS Version: macOS 26.6.2 (25G83) Release Type: User

Crash Reporter Key: 5CBD1695-D98B-BA74-1D07-E9CA5DDAC15B Incident Identifier: 9448E2CE-55F9-4EE2-9DDA-11FDA13F2B71

Time Awake Since Boot: 580 seconds

System Integrity Protection: enabled

Triggered by Thread: 0, Dispatch Queue: com.apple.main-thread

Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000

Termination Reason: Namespace SIGNAL, Code 6, Abort trap: 6 Terminating Process: Xcode [1677]

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x186d645e8 __pthread_kill + 8 1 libsystem_pthread.dylib 0x186d9f8d8 pthread_kill + 296 2 libsystem_c.dylib 0x186ca5978 abort + 148 3 libsystem_c.dylib 0x186ca5a94 abort_report_np + 84 4 Xcode 0x104030ed0 main.cold.1 + 36 5 Xcode 0x104030e1c main + 340 6 dyld 0x1869d44e4 start + 6992

Thread 0 crashed with ARM Thread State (64-bit): x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x0000000000000000 x4: 0x0000000000000073 x5: 0x000000000000002e x6: 0x000000016bdcf268 x7: 0xfffff0003ffff800 x8: 0xd7ffa4104eee454f x9: 0xd7ffa411bd93a4cf x10: 0x0000000000000002 x11: 0x00000000fffffffd x12: 0x0000000000000000 x13: 0x0000000000000000 x14: 0x0000000000000000 x15: 0x0000000000000000 x16: 0x0000000000000148 x17: 0x00000001f4e1f358 x18: 0x0000000000000000 x19: 0x0000000000000006 x20: 0x0000000000000103 x21: 0x00000001f37de260 x22: 0x00000001046b4b20 x23: 0x00000001f37e5908 x24: 0x0000000000000001 x25: 0x000000016bdcf6c0 x26: 0x00000001f37dfa70 x27: 0x0000000000000000 x28: 0x0000000000000000 fp: 0x000000016bdcf3e0 lr: 0x0000000186d9f8d8 sp: 0x000000016bdcf3c0 pc: 0x0000000186d645e8 cpsr: 0x40001000 far: 0x0000000000000000 esr: 0x56000080 (Syscall)

Binary Images: 0x104030000 - 0x104033fff com.apple.dt.Xcode (26.6) <8025d4bb-71ea-3f57-bade-2e3c847b6cf3> /Applications/Xcode.app/Contents/MacOS/Xcode 0x186d5b000 - 0x186d982e7 libsystem_kernel.dylib () <c6a4a4cb-92e6-3baf-aae0-e8306259209a> /usr/lib/system/libsystem_kernel.dylib 0x186d99000 - 0x186da5b3b libsystem_pthread.dylib () <a373f0b0-9880-326a-88b4-dd8be4e33072> /usr/lib/system/libsystem_pthread.dylib 0x186c2d000 - 0x186cae1e7 libsystem_c.dylib () <d77ceb62-aff6-3cec-ba9b-4f057fbe2eb5> /usr/lib/system/libsystem_c.dylib 0x1869b4000 - 0x186a674ff dyld () <74e52480-c2bd-3c8d-812d-95fe2b74a096> /usr/lib/dyld 0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ???

External Modification Summary: Calls made by other processes targeting this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by all processes on this machine: task_for_pid: 0 thread_create: 0 thread_set_state: 0

VM Region Summary: ReadOnly portion of Libraries: Total=1.1G resident=0K(0%) swapped_out_or_unallocated=1.1G(100%) Writable regions: Total=25.0M written=289K(1%) resident=289K(1%) swapped_out=0K(0%) unallocated=24.7M(99%)

Same issue i got today upgraded Macos to Tahoe and Xcode to 26.6

Thanks so much for the post. Based on the release notes “Xcode 26.6 requires a Mac running macOS Tahoe 26.2 or later.” And you wrote you are on Tahoe 26.6.2? And the crash file contains Version: macOS 26.6.2 (25G83)

https://developer.apple.com/documentation/xcode-release-notes/xcode-26_6-release-notes

Any chance you can provide the crash file on a format I can use? Please take a look at this great resource from Eskimo how to post a crash file: https://developer.apple.com/forums/thread/688669

Do you have anything that could be causing the issue this directories?

~/Library/Caches/com.apple.dt.Xcode 
~/Library/Developer/Xcode/DerivedData

When Xcode crashes do you have an option to submit a report? Have you submitted any?

Thanks

Albert  WWDR

I experienced the same issue (Tahoe 26.6.2, Xcode version 26.6). I cleared any and all Caches and defaults that I was aware of, and reinstalled Xcode. Still the problem persists. Attached is a crash log, which the Problem Report says was automatically sent to Apple.

XCode cannot be opened
 
 
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