title: Installation error: INSTALL_PARSE_FAILED_NO_CERTIFICATES?
body: <p>I am trying to develop an android application I exported this application to send it to some people to test it I continue  the developpment of my  application and then when I tried  to  run it  with some  changement  I got this problem :</p>
  
  <pre><code>   Installation error: INSTALL_PARSE_FAILED_NO_CERTIFICATES
  </code></pre>
  
  <p>Can you help me !! to solve this problem !!</p>