title: Unable to install Grunt ?
body: <p>I've installed grunt : </p>
  
  <pre><code> sudo npm install -g grunt-cli
  /Users/user/.nvm/versions/node/v4.3.0/bin/grunt -&gt; /Users/user/.nvm/versions/node/v4.3.0/lib/node_modules/grunt-cli/bin/grunt
  /Users/user/.nvm/versions/node/v4.3.0/lib
  └── grunt-cli@1.2.0 
  </code></pre>
  
  <p>But when i run grunt i have errors: </p>
  
  <pre><code>grunt 
  grunt-cli: The grunt command line interface (v1.2.0)
  
  Fatal error: Unable to find local grunt.
  
  If you're seeing this message, grunt hasn't been installed locally to
  your project. For more information about installing and configuring grunt,
  please see the Getting Started guide:
  
  http://gruntjs.com/getting-started
  </code></pre>
  
  <p>Where i am wrong please ?</p>