Xcode 4.2在发射时崩溃

我刚刚加入了开发者计划，下载了雪豹10.6.8的Xcode 4.2

第一次发射时，它因以下错误而崩溃：

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

细节

UNCAUGHT EXCEPTION (NSInternalInconsistencyException): Couldn't load plug-in 'com.apple.dt.IDE.IDEiPhoneSupport' while firing fault for extension 'Xcode.Device.iPhoneSimulator'
UserInfo: {
    NSUnderlyingError = "Error Domain=DVTPlugInErrorDomain Code=2 UserInfo=0x200819720 \"Loading a plug-in failed.\" Underlying Error=(Error Domain=NSCocoaErrorDomain Code=3587 UserInfo=0x200924300 \"The bundle \U201cIDEiPhoneSupport\U201d couldn\U2019t be loaded because it is damaged or missing necessary resources.\" (dlopen_preflight(/Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/PrivatePlugIns/IDEiPhoneSupport.ideplugin/Contents/MacOS/IDEiPhoneSupport): Library not loaded: /System/Library/PrivateFrameworks/DeviceLink.framework/Versions/A/DeviceLink\n  Referenced from: /Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/PrivatePlugIns/IDEiPhoneSupport.ideplugin/Contents/MacOS/IDEiPhoneSupport\n  Reason: image not found))";
}
Hints: None
Backtrace:
  0  0x00007fff87a1e766 __exceptionPreprocess (in CoreFoundation)
  1  0x00007fff87d35f03 objc_exception_throw (in libobjc.A.dylib)
  2  0x000000010001bdf0 -[DVTExtension _fireExtensionFault] (in DVTFoundation)
  3  0x0000000100006096 __38-[DVTDispatchLock performLockedBlock:]_block_invoke_0 (in DVTFoundation)
  4  0x00007fff87589fbb dispatch_barrier_sync_f (in libSystem.B.dylib)
  5  0x000000010000603f -[DVTDispatchLock performLockedBlock:] (in DVTFoundation)
  6  0x000000010001bb8b -[DVTExtension _valueForKey:inParameterData:usingSchema:] (in DVTFoundation)
  7  0x000000010001bacf -[DVTExtension valueForKey:] (in DVTFoundation)
  8  0x000000010001b2a7 +[DVTDevice _knownDeviceLocators] (in DVTFoundation)
  9  0x000000010001ae00 -[DVTDeviceManager startLocating] (in DVTFoundation)
 10  0x0000000100568fbc IDEInitialize (in IDEFoundation)
 11  0x00000001008e4f58 -[IDEApplicationController applicationWillFinishLaunching:] (in IDEKit)
 12  0x00007fff88a32ad5 _nsnote_callback (in Foundation)
 13  0x00007fff879c5fd0 __CFXNotificationPost (in CoreFoundation)
 14  0x00007fff879b2548 _CFXNotificationPostNotification (in CoreFoundation)
 15  0x00007fff88a29a36 -[NSNotificationCenter postNotificationName:object:userInfo:] (in Foundation)
 16  0x00007fff812e7901 -[NSApplication finishLaunching] (in AppKit)
 17  0x00007fff812e7554 -[NSApplication run] (in AppKit)
 18  0x00007fff812e03b0 NSApplicationMain (in AppKit)
 19  0x0000000100000eec
 20  0x0000000000000002

我想以前在这个Mac上安装过Xcode，但我在任何地方的应用程序中都看不到它，我只是通过搜索它来启动Xcode。它出现在/Developer/Applications中

发生了什么事？以前有人见过这个错误吗？有解决办法吗

更新：

我已经点击了几次continue来查看发生了什么，Xcode确实启动了。现在我想知道我是否应该继续使用它或者寻找这个问题的根本原因。有些事情告诉我，潜在问题将在以后以奇怪的方式表现出来

更新2:

什么都没用，只是挂着。要使用卸载xcode吗

sudo /Developer/Library/uninstall-devtools --mode=all

然后尝试重新安装解决方案是：

删除所有开发工具

sudo/Developer/Library/uninstall devtools--mode=all

重新启动Mac（可能是可选的，但我还是重新启动了）

重新安装Xcode