Xcode Internal Error

Subject: Xcode Internal Error
From: Rich Collyer <email@hidden>
Date: Mon, 1 Dec 2008 10:23:41 -0800

On a fairly regular basis, I get the following error from Xcode 3.x while I am doing a checkout of our source from SVN. Is there something wrong with my setup, or is this a bug in Xcode?

++++++++++++++++++++++++++++++++++++++++++

12/1/08 10:09:50 AM Xcode[4662] ** INTERNAL ERROR: Uncaught Exception **

Exception: Cannot remove an observer <NSTreeControllerTreeNode 0x2f32420> for the key path "activities" from <SVNTreeUpdate 0x2f56630> because it is not registered as an observer.

Stack:

0 0x9225014b __raiseError (in CoreFoundation)

1 0x94beae3b objc_exception_throw (in libobjc.A.dylib)

2 0x9224ff2b +[NSException raise:format:arguments:] (in CoreFoundation)

3 0x9224ff6a +[NSException raise:format:] (in CoreFoundation)

4 0x91812fcd -[NSObject(NSKeyValueObserverRegistration) _removeObserver:forProperty:] (in Foundation)

5 0x91812da4 -[NSObject(NSKeyValueObserverRegistration) removeObserver:forKeyPath:] (in Foundation)

6 0x92d1adcc -[NSTreeControllerTreeNode _configureObservingWithOption:] (in AppKit)

7 0x92d1abb4 -[NSTreeControllerTreeNode _tearDownObserving] (in AppKit)

8 0x92d1c42c -[NSTreeControllerTreeNode updateChildNodesForKeyPath:] (in AppKit)

9 0x92d1afa0 -[NSTreeControllerTreeNode observeValueForKeyPath:ofObject:change:context:] (in AppKit)

10 0x91811ece NSKVONotify (in Foundation)

11 0x9178e392 -[NSObject(NSKeyValueObserverNotification) didChangeValueForKey:] (in Foundation)

12 0x00817cdf -[SCMActivity sendChangedMessage] (in DevToolsCore)

13 0x00817c81 -[SCMActivity sendChangedMessage] (in DevToolsCore)

14 0x00808b2b -[SCMManager handlePortMessage:] (in DevToolsCore)

15 0x917cbbe3 __NSFireMachPort (in Foundation)

16 0x921b2635 __CFMachPortPerform (in CoreFoundation)

17 0x921d6908 CFRunLoopRunSpecific (in CoreFoundation)

18 0x921d6cf8 CFRunLoopRunInMode (in CoreFoundation)

19 0x91aff480 RunCurrentEventLoopInMode (in HIToolbox)

20 0x91aff299 ReceiveNextEventCommon (in HIToolbox)

21 0x91aff10d BlockUntilNextEventMatchingListInMode (in HIToolbox)

22 0x926743ed _DPSNextEvent (in AppKit)

23 0x92673ca0 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in AppKit)

24 0x9266ccdb -[NSApplication run] (in AppKit)

25 0x92639f14 NSApplicationMain (in AppKit)

26 0x00002c82

+++++++++++++++++++++++

Rich Collyer - Senior Software Engineer

email@hidden

IronKey - The World's Most Secure Flash Drive

2008 SC Magazine Readers Choice Award Winner

2008 FOSE Best of Show Winner

2007 GCN Labs Reviewers Choice Winner

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