title: What is causing this error - "Fatal error: Unable to find local grunt"
body: <p>I removed the old version of grunt first, then I installed the new grunt version, and then I got this error:</p>
  
  <blockquote>
    <p>D:\www\grunt-test\grunt grunt-cli: The grunt command line interface.
    (v0.1.4)</p>
    
    <p>Fatal error: Unable to find local grunt.</p>
    
    <p>If you're seeing this message, either a Gruntfile wasn't found or
    grunt hasn't been installed locally to your project. For more
    information about installing and configuring grunt, please see the
    Getting Started guide: <a href="http://gruntjs.com/getting-started" rel="noreferrer">http://gruntjs.com/getting-started</a></p>
  </blockquote>
  
  <p>Is this because there is not a reference to grunt in my system path? Or something else? I tried to re-install it a few times already.</p>