即使我已设置环境变量，也无法识别Reg

Question

当我安装npm install -g loopback-cli而不是显示此错误时，我已经设置了这样的环境变量C：\ Python27 \ python.exe; C：\ Program Files \ nodejs \

Answer 1

   Firstly download and install Microsoft Build Tools 2013 from :
http://www.microsoft.com/en-us/download/details.aspx?id=40760 and run npm config  set msvs_version 2013 --global as suggested by catalint.
Delete the folder .npm-gyp under C:\Users\user
execute npm install -g fs --save-dev
Copy the downloaded fs folder from C:\Users\user\AppData\Roaming\npm\node_modules to $nodehome\node_modules\npm\node_modules (Note : In my case its C:\Program Files\nodejs\node_modules\npm\node_modules)
execute npm install --msvs_version=2013 node-gyp rebuild
After doing above steps i stopped getting build errors.

Answer 2

尝试安装Microsoft Build工具：https://www.microsoft.com/en-us/download/details.aspx?id=40760