title: Google App Engine : this application does not exist
body: <p>When i deploy my application in GAE , i get this error </p>
  
  <pre><code>      This application does not exist (app_id=u'qsse-ss').
  </code></pre>
  
  <p>scenario is that this application is already deployed to GAE by some other user , now i have made some changes and i want to update in GAE, so now when i right click on my app in eclipse and go to "deploy to appengine " it gives me this error </p>
  
  <p>Am i doing something wrong , whats the correct way of doing it</p>
  
  <p>thanks </p>