Cannot find module 'classnames'
<p>I am getting the following error when I try and run grunt on a react project</p>

<p>$ grunt server
Running "browserify:dist" (browserify) task</p>

<blockquote>
  <blockquote>
    <p>Error: Cannot find module 'classnames' from 'd:\wamp\www\react1\app\assets\js
    \components'
    Warning: Error running grunt-browserify. Use --force to continue.</p>
  </blockquote>
</blockquote>

<p>Aborted due to warnings.</p>