I've recently upgraded my OSX from snow leopard to mountain lion and am running into an issue where my xCode shuts down 100% of the time within 5 seconds of opening any project. Here's the error message given. I've tried googling the error, but cannot find any info on the subject.
The error appears on opening any project, not just autolayout ones. The message "Waiting for other symbol copying" appears in the status bar on top, then xCode crashes with the exception listed below.
I remember that xCode asked me to install some additional component after OSX upgrade, but it crashed in the process of doing so and did not ask me again.
I tried re-installing xCode through the app store, but this did not fix the issue.
How can I fix/repair my xCode installation to fix the error?
Process: Xcode [2957]
Path: /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 4.6.3 (2068)
Build Info: IDEApplication-2068000000000000~3
App Item ID: 497799835
App External ID: 15588541
Code Type: X86-64 (Native)
Parent Process: launchd [130]
User ID: 501
Date/Time: 2013-07-11 08:14:22.608 -0400
OS Version: Mac OS X 10.8.4 (12E55)
Report Version: 10
Interval Since Last Report: 2375 sec
Crashes Since Last Report: 1
Per-App Interval Since Last Report: 18 sec
Per-App Crashes Since Last Report: 1
Anonymous UUID: F0403235-5ECB-ADEA-6618-E5526B9FE281
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
ProductBuildVersion: 4H1503
ASSERTION FAILURE in /SourceCache/IDEInterfaceBuilderCocoaTouch/IDEInterfaceBuilderCocoaTouch-2083/IBPlugin/Utilities/IBObjectMarshalling.m:651
Details: Failed to run one shot request for IBNSLayoutConstraint, IBUIImageView, IBUILabel, IBUITableViewCell, and IBUIView.
Interface Builder encountered an error communicating with the iOS Simulator. If you choose to file a crash report or radar for this issue, please check Console.app for crash reports for "Interface Builder Cocoa Touch Tool" and include their content in your crash report.
Exception name: IBAssertionFailure
Exception reason: ASSERTION FAILURE: [[self constant] symbolicValue] || (floor(constantValue) == constantValue)
Reason: Constraint constants should be integral (constant attempted to be set to -10.500000). Foundation will always integralize the output anyways, so if constants are not integralized, this will almost always lead to arbitration failures. Constraint is <IBNSLayoutConstraint: 0x8191060> UILabel[0x817b130].Center X = UITableViewCell[0x8183690].Center X - 10.500000 containingView={<(null):0x0>} scoreVector=<0.000000, 3, 1, 1000.000000, 0>, roundingAdjustment=0
File: /SourceCache/IBAutolayoutFoundationIOS/IBAutolayoutFoundation-2065/Framework/Classes/Model/Constraints/IBNSLayoutConstraint.m:460
Method: -[IBNSLayoutConstraint assertConstraintValidity]
Exception backtrace:
0. CoreFoundation 0x022ad012 __exceptionPreprocess
1. libobjc.A.dylib 0x0170ce7e objc_exception_throw
2. CoreFoundation 0x02335fb1 -[NSException raise]
3. IBAutolayoutFoundation 0x0008be44 -[IBNSLayoutConstraint assertConstraintValidity]
4. IBAutolayoutFoundation 0x0007b97f -[IBLayoutConstraint initWithFirstItem:firstAttribute:relation:secondItem:secondAttribute:constant:]
5. IBAutolayoutFoundation 0x000899d2 -[IBNSLayoutConstraint initWithFirstItem:firstAttribute:relation:secondItem:secondAttribute:constant:]
6. IBAutolayoutFoundation 0x0007c1ca -[IBLayoutConstraint copyWithZone:]
7. IBAutolayoutFoundation 0x00089dfe -[IBNSLayoutConstraint copyWithZone:]
8. libobjc.A.dylib 0x01720ae9 -[NSObject copy]
9. IBAutolayoutFoundation 0x0007e0e5 -[IBLayoutConstraint constraintByReplacingView:withView:andReplacingView:withView:]
10. IBAutolayoutFoundation 0x000ac46b -[IBAutolayoutEngine representedConstraintBySubstitutingRealViewsForRepresentedViewsOfConstraint:]
11. IBAutolayoutFoundation 0x000ac5f6 -[IBAutolayoutEngine addRepresentedConstraintForRealConstraint:]
12. IBAutolayoutFoundation 0x000ae959 -[IBAutolayoutEngine constraintsMakingSystemOverConstrainedByAddingConstraint:toView:]
13. IBAutolayoutFoundation 0x000b803a +[IBAutolayoutArbiter attemptToAddConstraint:byModifyingLayoutEngine:mutuallyExclusiveConstraintBreakageStrategy:mutableConstraintsToAdd:mutableConstraintsToRemove:]
14. IBAutolayoutFoundation 0x000ace27 -[IBAutolayoutEngine performEngineBootstrappingConstraintAdditionOperationForAddingConstraint:]
15. IBAutolayoutFoundation 0x000ad46e __90-[IBAutolayoutEngine iterateViewsAndGenerateRepresentedConstraintsAndMapToRealConstraints]_block_invoke404
16. CoreFoundation 0x0229acdf __NSDictionaryEnumerate
17. CoreFoundation 0x0229a87d -[NSDictionary enumerateKeysAndObjectsWithOptions:usingBlock:]
18. CoreFoundation 0x0229a7c5 -[NSDictionary enumerateKeysAndObjectsUsingBlock:]
19. IBAutolayoutFoundation 0x000ad150 -[IBAutolayoutEngine iterateViewsAndGenerateRepresentedConstraintsAndMapToRealConstraints]
20. IBAutolayoutFoundation 0x000a7db9 -[IBAutolayoutEngine initWithArbitrationUnit:options:]
21. IBAutolayoutFoundation 0x000c1454 -[IBAutolayoutFrameDecisionDriver initWithArbitrationUnit:options:]
22. ??? 0x0000c5a9 [IBCocoaTouchTool _startAutolayoutFrameDecisionSessionWithRequest:document:]
23. ??? 0x0000d49c [IBCocoaTouchTool runOneShotIncrementalFrameDecisionRequest:withFrameDecisionSessionRequest:document:]
24. ??? 0x00034fa5 [IBMessageReceiveChannel deliverMessage:toTarget:withArguments:result:]
25. ??? 0x00034cea [IBMessageReceiveChannel deliverMessage:toTarget:withArguments:result:]
26. ??? 0x000349d5 [IBMessageReceiveChannel runBlockingReceiveLoopNotifyingQueue:notifyingTarget:]
27. libdispatch.dylib 0x04c4c731 _dispatch_barrier_sync_f_slow_invoke
28. libdispatch.dylib 0x04c5b014 _dispatch_client_callout
29. libdispatch.dylib 0x04c4b7d5 _dispatch_main_queue_callback_4CF
30. CoreFoundation 0x02253af5 __CFRunLoopRun
31. CoreFoundation 0x02252f44 CFRunLoopRunSpecific
32. CoreFoundation 0x02252e1b CFRunLoopRunInMode
33. Foundation 0x013113ac -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
34. ??? 0x0000d981 [IBCocoaTouchTool startServingReceiveChannel:]
35. ??? 0x0000db1a [IBCocoaTouchTool startServingWithSocket:]
36. ??? 0x0000ec89 [IBCocoaTouchTool .cxx_destruct]
37. ??? 0x00002c15 ???
38. ??? 0x00000003 ???
Exception info:{
}
