title: Android Studio did not update to 2.1
body: <p>I would like to update my Android Studio Version to 2.1</p>
  
  <p><a href="http://i.stack.imgur.com/v2wjL.png" rel="nofollow">Update</a></p>
  
  <p>Patch file downloaded but afterwards this info window appears :(</p>
  
  <p><a href="http://i.stack.imgur.com/ITaUS.png" rel="nofollow">error message</a></p>
  
  <p>Afterwards Android Studio stays at 1.5.1</p>
  
  <p>Any help?</p>