title: Google App Engine - update_indexes error
body: <p>I have a Java app deployed on app engine and I use appcfg.py of the
  Python SDK to vacuum and update my indexes.</p>
  
  <p>Yesterday I first ran vacuum_indexes and that completed successfully -
  i.e. it en-queued tasks to delete my existing indexes.</p>
  
  <p>The next step was probably a mistake on my part - I then ran
  update_indexes even though my previous indexes weren't yet deleted.
  Needless to say that my update_indexes call errored out. So much so
  that now when I look at my app engine console, it shows the status of
  all my indexes as "Error".</p>
  
  <p>A day has passed an it still shows the status on my indexes as "Error".</p>
  
  <p>Can someone help my out of my fix?!</p>
  
  <p>Thanks,
  Keyur </p>
  
  <p>P.S.: I have posted this on the GAE forums as well but hoping SO users have faced and resolved this issue as well.</p>