问题
I am trying to test out the Google App Engine. I have created an appspot domain, downloaded the sample project and put in all credentials required. I have also enabled Google Cloud Messaging for Android.
When I hit the send button (in the samples GuestBookActivity), I get the message:
"The backend is locked down. The administrator can change the authentication/authorization settings on [my appspot domain]".
Does anyone know about this issue and how to resolve it?
回答1:
As @Peter Knego said, see point 8 here: https://developers.google.com/cloud/samples/mbs/deploy_backend
I had forgot to open my server for development use.
来源：https://stackoverflow.com/questions/19778139/google-app-engine-the-backend-is-locked-down