清空Visual Studio 文件缓存目录
Just delete or rename this folder:
%AppData%..LocalMicrosoftVisualStudio11.0ComponentModelCache
or
%AppData%..LocalMicrosoftVPDExpress11.0ComponentModelCache
For Visual Studio 2013, change the version number:
%AppData%..LocalMicrosoftVisualStudio12.0ComponentModelCache
For Visual Studio 2015, change the version number:
%AppData%..LocalMicrosoftVisualStudio14.0ComponentModelCache
重新启动VS