Error: EACCES, permission denied 解决

配置yeomanu环境,denied总报错
 Would you like to include Bootstrap? Yes
? Would you like to use the Sass version of Bootstrap? Yes
? Which modules would you like to include? angular-animate.js, angular-cookies.js, angular-resource.js, angular-route.js, angular-sanitize.js
identical app/styles/main.scss
identical app/index.html
   create bower.json

fs.js:438
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
                 ^
Error: EACCES, permission denied 'bower.json'
    at Object.fs.openSync (fs.js:438:18)
    at Object.fs.writeFileSync (fs.js:977:15)
    at Generator.&lt;anonymous&gt; (/usr/local/lib/node_modules/generator-angular/node_modules/yeoman-generator/lib/actions/actions.js:217:10)
    at processImmediate [as _immediateCallback] (timers.js:345:15)

`</pre>

之前以为是node模块权限不够，所以chmod node_module，尝试未果

窃以为是网站目录的权限问题了，一行搞定

<pre>`sudo chown yourusername:admin /yourdocument