title: Debug.keystore file missing. How to update my app?
body: <p>My previous colleague has uploaded an app in GOOGLE PLAY , which is live now.</p>
  
  <p>But now i have to update the application </p>
  
  <p>I am not able to upgrade the new version of the app - It is saying the Certificate is not matching etc.,.</p>
  
  <ul>
  <li>I came to know that the initial debug file has not been preserved &amp; it has been deleted due to a system format on Windows.</li>
  </ul>
  
  <p>Please provide any ways to update the app .</p>
  
  <p>Thank you</p>