更新到 OS X Mavericks 后，我无法启动 Xcode 5.0.1。请帮忙。
以下是来自崩溃报告的消息：
Application Specific Information:
ProductBuildVersion: 5A2053
UNCAUGHT EXCEPTION (NSInternalInconsistencyException): Error getting value for key 'delegateClass' of extension 'Xcode.RepositoriesViewer.MenuDefinition.HelpContextualMenu' in plug-in 'com.apple.dt.IDE.IDERepositoryViewer'
UserInfo: {
NSUnderlyingError = "Error Domain=DVTPlugInErrorDomain Code=2 \"Loading a plug-in failed.\" UserInfo=0x7ff8bf440f10 {DVTPlugInIdentifierErrorKey=com.apple.dt.IDE.IDERepositoryViewer, DVTPlugInExecutablePathErrorKey=/Applications/Xcode.app/Contents/PlugIns/IDERepositoryViewer.ideplugin/Contents/MacOS/IDERepositoryViewer, NSLocalizedRecoverySuggestion=The plug-in or one of its prerequisite plug-ins may be missing or damaged and may need to be reinstalled., NSLocalizedDescription=Loading a plug-in failed., NSFilePath=/Applications/Xcode.app/Contents/PlugIns/IDERepositoryViewer.ideplugin, NSLocalizedFailureReason=The plug-in \U201ccom.apple.dt.IDE.IDERepositoryViewer\U201d at path \U201c/Applications/Xcode.app/Contents/PlugIns/IDERepositoryViewer.ideplugin\U201d could not be loaded. The plug-in or one of its prerequisite plug-ins may be missing or damaged., NSUnderlyingError=0x7ff8bf43c8e0 \"The bundle \U201cIDERepositoryViewer\U201d couldn\U2019t be loaded because it is damaged or missing necessary resources.\"}";