title: Android - Unable to execute dex: Multiple dex files define
body: <p>I tried run my android app and i got this error.</p>
  
  <pre><code>[2014-03-11 11:21:34 - Dex Loader] Unable to execute dex: Multiple dex files define Lorg/apache/cordova/App$1;
  [2014-03-11 11:21:34 - Android-C2DM-PhoneGap] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Lorg/apache/cordova/App$1;
  </code></pre>
  
  <p>I'm using this project for my reference.
  <a href="http://devgirl.org/2012/10/25/tutorial-android-push-notifications-with-phonegap/">http://devgirl.org/2012/10/25/tutorial-android-push-notifications-with-phonegap/</a></p>
  
  <p>I'm using phone gap for my project. I export external cordova lib project into my android project.</p>
  
  <p>Why it happen?</p>