重装系统后 重新安装vs2008 在打开以前的项目是发现如下图提示
不知是什么原因?望各位给解决一下
If you have error creating project and receive Unable read project file [full filename]: The tools version "3.5" is unrecognised, then the following should help to solve it.
Open up your Window registry :-
And make the following changes....
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild] -- 增加MSBuild节点(项),下同
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\3.5]
"DefaultToolsVersion"="2.0" -- 增加字符串
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\2.0]
"MSBuildToolsPath"="C:\\WINDOWS\\Microsoft.NET\\Framework\\v2.0.50727\\"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\3.5]
"MSBuildToolsPath"="C:\\WINDOWS\\Microsoft.NET\\Framework\\v3.5\\"
原文地址: http://mitzen.blogspot.com/2009/01/vs-2008-create-project-tool-version.html
http://www.cnblogs.com/nevernet/archive/2009/04/29/1396879.html
解决方法。