Objective c xcode 4.2由于内部错误而不断崩溃

我是Mac开发的新手。我已经安装了Lion和Xcode 4.2。但是，每当我尝试单击任何.m文件时，都会遇到崩溃。我刚刚创建了一个新项目，一旦我选择了包含.h和.m文件的文件夹，它就会给我一个内部错误的崩溃。我卸载了一次，然后完全重新安装。还是一样的问题。 我基本上是一名Windows开发人员（.NET）。我正在努力学习iOS应用程序开发。 这是弹出的崩溃对话框中的错误：

内部错误 Xcode遇到内部逻辑错误。选择“继续”以在不一致的状态下继续运行Xcode。选择“崩溃”停止Xcode并向Crash Reporter提交一个bug。选择“崩溃”将导致所有未保存的数据丢失

UNCAUGHT EXCEPTION (NSInvalidArgumentException): -[__NSCFDictionary setObject:forKey:]:

    attempt to insert nil value (key: SourceTree(Dev))
UserInfo: (null)
Hints: None
Backtrace:
  0  0x00007fff9116926a __exceptionPreprocess (in CoreFoundation)
  1  0x00007fff94a3dd5e objc_exception_throw (in libobjc.A.dylib)
  2  0x00007fff911690ba +[NSException raise:format:arguments:] (in CoreFoundation)
  3  0x00007fff91169044 +[NSException raise:format:] (in CoreFoundation)
  4  0x00007fff9112629b -[__NSCFDictionary setObject:forKey:] (in CoreFoundation)
  5  0x000000010930b5c8 -[Xcode3Group resolutionContextForStrategies:] (in DevToolsCore)
  6  0x0000000105ee6785 -[IDEGroupIdentityAndType _resolutionContextForContentWithStrategies:] (in IDEKit)
  7  0x0000000105ee6e24 -[IDEGroupIdentityAndType customResolutionStrategiesDisplayNamePopupItems] (in IDEKit)
  8  0x00007fff897be434 _NSGetUsingKeyValueGetter (in Foundation)
  9  0x00007fff897be3e9 -[NSObject(NSKeyValueCoding) valueForKey:] (in Foundation)
 10  0x00007fff897dde76 -[NSObject(NSKeyValueCoding) valueForKeyPath:] (in Foundation)
 11  0x0000000105e3a735 -[IDEInspectorTextEnumerationProperty rebuildMenuContent] (in IDEKit)
 12  0x000000010561e028 -[DVTDelayedValidator doValidation:] (in DVTKit)
 13  0x0000000105e3b14c -[IDEInspectorTextEnumerationProperty configureEnumeratedOptions] (in IDEKit)
 14  0x0000000105e3b69e -[IDEInspectorTextEnumerationProperty bindAndConfigure] (in IDEKit)
 15  0x0000000105e361c9 -[IDEInspectorProperty viewDidInstall] (in IDEKit)
 16  0x00007fff911602e1 -[NSObject performSelector:] (in CoreFoundation)
 17  0x00007fff91164722 -[NSArray makeObjectsPerformSelector:] (in CoreFoundation)
 18  0x0000000105eefe8d -[IDEInspectorPropertyContainingView propertiesDidInstall] (in IDEKit)
 19  0x0000000105eeffcf -[IDEInspectorPropertyContainingView viewDidMoveToWindow] (in IDEKit)
 20  0x00007fff8fdf1153 -[NSView _setWindow:] (in AppKit)
 21  0x00007fff8fd1d124 __NSViewRecursionHelper (in AppKit)
 22  0x00007fff910f7314 CFArrayApplyFunction (in CoreFoundation)
 23  0x00007fff8fdf10d7 -[NSView _setWindow:] (in AppKit)
 24  0x00007fff8fd1d124 __NSViewRecursionHelper (in AppKit)
 25  0x00007fff910f7314 CFArrayApplyFunction (in CoreFoundation)
 26  0x00007fff8fdf10d7 -[NSView _setWindow:] (in AppKit)
 27  0x00007fff8fd1d124 __NSViewRecursionHelper (in AppKit)
 28  0x00007fff910f7314 CFArrayApplyFunction (in CoreFoundation)
 29  0x00007fff8fdf10d7 -[NSView _setWindow:] (in AppKit)
 30  0x00007fff8fd1d124 __NSViewRecursionHelper (in AppKit)
 31  0x00007fff910f7314 CFArrayApplyFunction (in CoreFoundation)
 32  0x00007fff8fdf10d7 -[NSView _setWindow:] (in AppKit)
 33  0x00007fff8fd1d124 __NSViewRecursionHelper (in AppKit)
 34  0x00007fff910f7314 CFArrayApplyFunction (in CoreFoundation)
 35  0x00007fff8fdf10d7 -[NSView _setWindow:] (in AppKit)
 36  0x00007fff8fdef3e2 -[NSView addSubview:] (in AppKit)
 37  0x00000001088fe5b4 -[NSView(IBAppKitViewIntegration) ibSwizzledNSViewDebug_addSubview:] (in IDEInterfaceBuilderCocoaIntegration)
 38  0x000000010569667d -[DVTDisclosureView layoutTopDown] (in DVTKit)
 39  0x000000010560e1c3 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 40  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 41  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 42  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 43  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 44  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 45  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 46  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 47  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 48  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 49  0x000000010560e272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
 50  0x000000010560e037 +[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:] (in DVTKit)
 51  0x000000010560dde1 -[DVTAutoLayoutView viewWillDraw] (in DVTKit)
 52  0x00007fff8fd1bc11 -[NSView viewWillDraw] (in AppKit)
 53  0x00007fff8fd1bc11 -[NSView viewWillDraw] (in AppKit)
 54  0x00007fff8fd1bc11 -[NSView viewWillDraw] (in AppKit)
 55  0x00007fff8fd1bc11 -[NSView viewWillDraw] (in AppKit)
 56  0x00007fff8fd1a952 -[NSView _sendViewWillDrawInRect:clipRootView:suppressRecursion:] (in AppKit)
 57  0x00007fff8fd196c1 -[NSView displayIfNeeded] (in AppKit)
 58  0x00007fff8fd1907d _handleWindowNeedsDisplayOrLayoutOrUpdateConstraints (in AppKit)
 59  0x00007fff91128f37 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ (in CoreFoundation)
 60  0x00007fff91128e96 __CFRunLoopDoObservers (in CoreFoundation)
 61  0x00007fff910fe159 __CFRunLoopRun (in CoreFoundation)
 62  0x00007fff910fdae6 CFRunLoopRunSpecific (in CoreFoundation)
 63  0x00007fff8d3753d3 RunCurrentEventLoopInMode (in HIToolbox)
 64  0x00007fff8d37c58f ReceiveNextEventCommon (in HIToolbox)
 65  0x00007fff8d37c4ca BlockUntilNextEventMatchingListInMode (in HIToolbox)
 66  0x00007fff8fcdd3f1 _DPSNextEvent (in AppKit)
 67  0x00007fff8fcdccf5 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in AppKit)
 68  0x00007fff8fcd962d -[NSApplication run] (in AppKit)
 69  0x00007fff8ff5880c NSApplicationMain (in AppKit)
 70  0x00000001053e7eec (in Xcode)

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这听起来确实像是Xcode中的一个bug，而不是你要负责的任何事情

你们有Xcode 4.2吗？Xcode的当前版本是4.2.1，它可能（也可能不）包含此问题的修复程序

如果您已经在使用4.2.1，或者最新版本继续显示此行为，请通过向其问题跟踪服务提交错误报告告知苹果：

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也可以在苹果的开发者论坛上发布@JoePasq，这是我想做的第一件事。不幸的是，他们想让我先成为付费会员。我想先学会在Mac上开发，然后可能会花99美元成为付费会员。现在我的救世主也是，我应该注意到这一点。我不会只为论坛访问支付100美元，除非你打算通过商店发布应用程序。@JoePasq我刚刚检查了苹果开发表单。。。有相当多的帖子本质上是关于这个错误的。O_O我向你保证苹果知道它存在。craig，我从Appstore下载了它。它是4.2.1，这是Appstore提供的版本。经过一点研究，我找到了4.2，现在正在下载。我将卸载4.2.1并安装4.2，看看这是否有帮助。我可以从个人经验证明4.2也是不稳定的。您应该能够在弹出的对话框中单击“继续”，只需注意可能会出现奇怪的行为。（我个人没有看到任何情况）随着苹果公司对漏洞的处理越来越深入，情况会有所改善，但我们开发人员目前除了等待漏洞修复之外，无能为力。@SplinterReality很高兴知道。现在我不必浪费时间安装4.2，我将继续使用我目前拥有的4.2.1。不过这很烦人。我是否可以安装其他更稳定的xcode版本，如4.0或3.x，但仍然可以在Lion和最新的iOS（即iOS 5）上运行？不幸的是，4.2是为iOS 5构建的版本。你可以使用以前的版本来构建你的应用程序，但是要注意，像故事板这样的功能（对于基于表单的应用程序、游戏等非常有用）将不可用。如果你没有使用最新的Xcode，当你提交应用程序时，你也可能会被苹果拒绝，但我强调你可能会被拒绝。他们真的很喜欢你尽可能地保持更新，我也看到过“根据最新的API编译”的提醒，明确表示不这样做可能会导致应用程序被拒绝。@SplinterReality感谢您提供的信息。我会记住的