今天在向我的Visual Studio 2010安装扩展程序（例如电动工具）之后，我在启动它时遇到了这个错误（特别是当我开始从解决方案编辑文件时）
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Microsoft Visual Studio
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Visual Studio has encountered an exception. This may be caused by an extension.
You can get more information by running the application together with the /log parameter on the command line, and then examining the file 'C:\Users\MYUSERNAME\AppData\Roaming\Microsoft\VisualStudio\10.0\ActivityLog.xml'.
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OK
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我尝试卸载所有extesnions但我仍然遇到同样的错误。
所以我用/log启动了VS，然后我在日志中发现了这两个错误
System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.VisualStudio.TextManager.Interop.IVsTextReplaceEvents'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{CF9928D9-65AE-4319-A446-94ED5C45ECDE}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). at System.StubHelpers.StubHelpers.GetCOMIPFromRCW(Object objSrc, IntPtr pCPCMD, Boolean& pfNeedsRelease) at Microsoft.VisualStudio.TextManager.Interop.IVsTextReplaceEvents.OnReplace(ChangeInput[] pCI) at Microsoft.VisualStudio.Editor.Implementation.VsTextBufferAdapter.OnTextBufferChangedHighPriority(Object sender, TextContentChangedEventArgs e) at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.RaiseEvent[TArgs](Object sender, EventHandler 1 eventHandlers, TArgs args)
System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.VisualStudio.Editor.Implementation.IVsTextStreamEvents_Private'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{96FC7D44-BCDD-4F00-AE4D-07E26B2C0E52}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). at System.StubHelpers.StubHelpers.GetCOMIPFromRCW(Object objSrc, IntPtr pCPCMD, Boolean& pfNeedsRelease) at Microsoft.VisualStudio.Editor.Implementation.IVsTextStreamEvents_Private.OnChangeStreamText(Int32 iPos, Int32 iOldLen, Int32 iNewLen, Int32 fLast) at Microsoft.VisualStudio.Editor.Implementation.VsTextBufferAdapter.OnTextBufferChanged(Object sender, TextContentChangedEventArgs e) at Microsoft.VisualStudio.Text.Utilities.GuardedOperations.RaiseEvent[TArgs](Object sender, EventHandler 1 eventHandlers, TArgs args)
任何人都知道这是什么？