multithreading - Cocoa应用程序中无法解释的NSUndoManager崩溃/断言

我有一个奇怪的问题，我正在研究一个Cocoa，OpenGL应用程序。每当我启动我的应用程序时，我在控制台上收到以下消息/断言失败，与eh NSUndoManager相关。顺便说一下，我没有使用撤消管理器。

2010-09-05 03:28:49.184 CocoaCoreTest[51721:a0f] *** Assertion failure in +[NSUndoManager _endTopLevelGroupings], /SourceCache/Foundation/Foundation-751.29/Misc.subproj/NSUndoManager.m:271 2010-09-05 03:28:49.188 CocoaCoreTest[51721:a0f] +[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread. 2010-09-05 03:28:49.189 CocoaCoreTest[51721:a0f] *** Assertion failure in +[NSUndoManager _endTopLevelGroupings], /SourceCache/Foundation/Foundation-751.29/Misc.subproj/NSUndoManager.m:271 2010-09-05 03:28:49.190 CocoaCoreTest[51721:a0f] An uncaught exception was raised 2010-09-05 03:28:49.190 CocoaCoreTest[51721:a0f] +[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread. 2010-09-05 03:28:49.192 CocoaCoreTest[51721:a0f] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '+[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread.' *** Call stack at first throw: ( 0 CoreFoundation 0x00007fff83e97cc4 __exceptionPreprocess + 180 1 libobjc.A.dylib 0x00007fff883bb0f3 objc_exception_throw + 45 2 CoreFoundation 0x00007fff83e97ae7 +[NSException raise:format:arguments:] + 103 3 Foundation 0x00007fff84cf2d5a -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 198 4 Foundation 0x00007fff84c4b936 +[NSUndoManager(NSPrivate) _endTopLevelGroupings] + 140 5 AppKit 0x00007fff823219f9 -[NSApplication run] + 689 6 AppKit 0x00007fff8231a5f8 NSApplicationMain + 364 7 CocoaCoreTest 0x000000010003b753 main + 33 8 CocoaCoreTest 0x0000000100021608 start + 52 9 ??? 0x0000000000000001 0x0 + 1 ) terminate called after throwing an instance of 'NSException'

我正在主线程上运行我的GUI，事实上我并没有产生任何其他线程。当我为x86_64编译时，我在调试和发布模式下遇到此崩溃。但是，有趣的是，当我为i386编译时，不会发生此错误。

感谢您的帮助！

弗洛里安

Cocoa应用程序中无法解释的NSUndoManager崩溃/断言

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