title: Ember 1.12 Cannot read property 'moduleName' of undefined
body: <p>I updated my Ember version from 1.11 to 1.12 and now I'm getting this error message on console when trying to run the app:</p>
  
  <blockquote>
    <p>Uncaught TypeError: Cannot read property 'moduleName' of undefined</p>
  </blockquote>
  
  <p>Any idea why? And how to solve?</p>