今天VS2008突然出现如下错误，
Project 'Console' could not be opened because the Microsoft Visual C# 2008 compiler could not be created. QueryService for '{74946829-37A0-11D2-A273-00C04F8EF4FF}' failed.
在VS的命令提示行中执行 devenv /resetskippkgs 命令，就OK了。