title: React Native - Can't find variable AppRegistry
body: <p>I've just started with react native. I've run:</p>
  
  <pre><code>$ react-native init AwesomeProject
  $ cd AwesomeProject
  $ react-native run-android
  </code></pre>
  
  <p>When it runs on the device shows red screen with:</p>
  
  <pre><code>React Native - Can't find variable AppRegistry
  </code></pre>