Google App Engine : this application does not exist

Question

When i deploy my application in GAE , i get this error

      This application does not exist (app_id=u\'qsse-ss\').

scenario is that this

Answer 1

That also happend to me when I change the email to create new appid for goagent.

My solution is delete cookie file in the server directory:

rm server/.appcfg_cookies

then, everything is ok!