title: Android error : Cannot recover key
body: <p>i have a problem when i want to run my android application, this is the error message :</p>
  
  <blockquote>
    <p>Error generating final archive: java.security.UnrecoverableKeyException: Cannot recover key</p>
  </blockquote>
  
  <p>how to solve this problem?</p>
  
  <p>thankyou</p>