安装bcrypt报错node-gyp rebuild解决方法

npm install bcrypt –save引起了让人很烦恼的错误，整个人心情都不好了。下边是个人的解决方法：

错误一

缺少python环境：

G:\nodejs\moviesite\node_modules\bcrypt>if not defined npm_config_node_gyp (node "D:\Program Files\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild )  else (rebuild)gyp ERR! configure errorgyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.gyp ERR! stack     at failNoPython (D:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:103:14)gyp ERR! stack     at D:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:64:11gyp ERR! stack     at FSReqWrap.oncomplete (evalmachine.<anonymous>:95:15)gyp ERR! System Windows_NT 6.3.9600gyp ERR! command "node" "D:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"gyp ERR! cwd G:\nodejs\moviesite\node_modules\bcryptgyp ERR! node -v v0.12.2gyp ERR! node-gyp -v v1.0.3gyp ERR! not oknpm ERR! Windows_NT 6.3.9600npm ERR! argv "D:\\Program Files\\nodejs\\\\node.exe" "D:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "bcrypt" "--save"npm ERR! node v0.12.2npm ERR! npm  v2.7.4npm ERR! code ELIFECYCLEnpm ERR! bcrypt@0.8.3 install: `node-gyp rebuild`npm ERR! Exit status 1npm ERR!npm ERR! Failed at the bcrypt@0.8.3 install script 'node-gyp rebuild'.npm ERR! This is most likely a problem with the bcrypt package,npm ERR! not with npm itself.npm ERR! Tell the author that this fails on your system:npm ERR!     node-gyp rebuildnpm ERR! You can get their info via:npm ERR!     npm owner ls bcryptnpm ERR! There is likely additional logging output above.npm ERR! Please include the following file with any support request:npm ERR!     G:\nodejs\moviesite\npm-debug.log

安装python解决，python(v2.7 recommended, v3.x.x is not supported)
下载：http://www.python.org/ftp/python/2.7.3/python-2.7.3.msi

错误二：

在此解决方案中一次生成一个项目。若要启用并行生成，请添加“/m”开关。
MSBUILD : error MSB3428: 未能加载 Visual C++ 组件“VCBuild.exe”。要解决此问题，
1) 安装 .NET Fram
ework 2.0 SDK；2) 安装 Microsoft Visual Studio 2005；或 3) 如果将该组件安装到了
其他位置，请将其位置添加到系统
路径中。 [G:\nodejs\moviesite\node_modules\bcrypt\build\binding.sln]
gyp ERR! build error

如图：

需要安装Microsoft Visual Studio Express 2013 for Windows Desktop
(版本应该不限制，我安装的是上边的版本)

安装成功，但是出现了警告，警告不影响bcrypt的使用

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参考文档：

https://github.com/TooTallNate/node-gyp#installation
http://stackoverflow.com/questions/14573488/error-compiling-bcrypt-node-js
https://github.com/TooTallNate/node-gyp/issues/154