title: Getting error on ng serve: ERROR in Cannot read property 'listLazyRoutes' of undefined
body: <p>When running <code>ng serve</code> in command-line for an angular-cli generated project, I am getting error below: </p>
  
  <pre><code> ERROR in Cannot read property 'listLazyRoutes' of undefined
  </code></pre>
  
  <p>Any thoughts on how to fix this error?</p>