title: This application does not exist (app_id=xxx)
body: <p>I was unable to upload to an AppEngine as <code>appcfg</code> was telling me :</p>
  
  <blockquote>
    <p>This application does not exist (app_id=u'xxx').</p>
  </blockquote>
  
  <p>I was only a developer on the AppEngine, so as I was just testing I created a new AppEngine where I was the owner but I still get the same message on a newly created AppEngine.</p>