title: git is not installed or not in the PATH
body: <p>Windows, when I try to run <code>npm install</code>, it shows:</p>
  
  <pre><code>mean@1.0.0 postinstall E:\mean
  node node_modules/grunt-cli/bin/grunt install
  Running "bower:install" (bower) task
  
  Fatal error : git is not installed or not in the PATH
  npm ERR! weird error 1
  npm ERR! not ok code 0
  </code></pre>
  
  <p>What is the problem? How to fix it?</p>
  
  <p>The project git repository is <a href="https://github.com/linnovate/mean" rel="nofollow noreferrer">https://github.com/linnovate/mean</a></p>