Last afternoon I created a project and deployed the mobile backend started. I edited the client code and sucessfully did some data insertion.
Some time (hours) after
Here is the perfect fix.
Log on to the app engine. Click on Instances on the left hand side. At the right bottom , you will see an option as "Shutdown"
Click on Shutdown. (Shutdown is not just shutdown. Its a restart).
The instance gets started in 10-12 seconds. Note : During these 10-12 seconds , the app engine is not accessible. So, if your app is live , your cloud will not work for these 10-12 seconds.
Refresh the page after 10 seconds and make sure you see the Shutdown option . This means your instance is restarted.
Now , retry and it will work. Send me email to jscript12@gmail.com if you still have questions