Cannot determine the location of the VS Common Tools folder.

用 DEVENV 在命令行編譯 .sln 工程時，出現以下錯誤：

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Setting environment for using Microsoft Visual Studio 2010 x86 tools.
EXEC : error : Cannot determine the location of the VS Common Tools folder.

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可能原因是 環境變量設置的不完整，

set PATH=%VS100COMNTOOLS%;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE;C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin;C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\x64;

SET FrameworkDir=%windir%\Microsoft.NET\Framework
SET FrameworkVersion=v4.0.30319

如上設置之后，編譯還是不通過。

將 %SystemRoot%\system32 加入PATH 環境變量后，編譯通過。