title: Eclipse, Android: Unexpected Unable to execute dex: Multiple dex files define
body: <p>The problem:
  I can't built my project. When I try the following sign is shown in the Console:</p>
  
  <pre><code>[2014-09-28 23:49:30 - Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/annotation/AnimRes;
  [2014-09-28 23:49:30 - Shop] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Landroid/support/annotation/AnimRes;
  </code></pre>
  
  <p>I lost hours of searching for a solution for this problem, but no result.. I tried to clean the project, to delete the bin folder etc. but nothing worked..</p>
  
  <p>Please, help, I don't know what to do..</p>