title: WebPack TypeError: Cannot read property 'request' of undefined
body: <p>I've inherited an existing Angular2 project. When I run <code>NPM start</code> I get a long error beginning with:</p>
  <blockquote>
  <p>Html Webpack Plugin:</p>
  <p>TypeError: Cannot read property 'request' of undefined<br />
  ...</p>
  </blockquote>
  <p>Full error output: <a href="http://textuploader.com/d5n25" rel="nofollow noreferrer">http://textuploader.com/d5n25</a></p>
  <p>Any ideas what this means and how I can debug this to find out the file/line of code that is the problem?</p>
  <p>Also on Windows 8.1 if that information helps.</p>