Npm install failed with “cannot run in wd” - jaxu－IT工程師數位筆記本

文章出處

　　Linux環境下，root賬戶，安裝某些npm包的時候報下面的錯誤，例如安裝grunt-contrib-imagemin時：

Error: EACCES, mkdir '/usr/local/lib/node_modules/coffee-script'
npm ERR!  { [Error: EACCES, mkdir '/usr/local/lib/node_modules/coffee-script']
npm ERR!   errno: 3,
npm ERR!   code: 'EACCES',
npm ERR!   path: '/usr/local/lib/node_modules/coffee-script',
npm ERR!   fstream_type: 'Directory',
npm ERR!   fstream_path: '/usr/local/lib/node_modules/coffee-script',
npm ERR!   fstream_class: 'DirWriter',
npm ERR!   fstream_stack: 
npm ERR!    [ 'DirWriter._create                 (/usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:36:23)',
npm ERR!      '/usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:37:53',
npm ERR!      'Object.oncomplete (fs.js:297:15)' ] }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

　　解決辦法如下：

執行npm install命令時加上--unsafe-perm選項：
```
[sudo] npm install --unsafe-perm
```
或者將unsafe-perm選項添加到package.json文件中：
```
"config": {
    "unsafe-perm":true
}
```
不要使用preinstall腳本來安裝全局模塊，你可以單獨安裝它們然后在非root賬戶下安裝其它模塊，就像下面這樣：
```
sudo npm install -g coffee-script node-gyp
npm install
```