AdMob Error Codes & Logs

Error Code 0 : ERROR_CODE_INTERNAL_ERROR

Something happened internally; for instance, an invalid response was received from the ad server.

Error Code 1 : ERROR_CODE_INVALID_REQUEST

The ad request was invalid; for instance, the ad unit ID was incorrect.

Error Code 2 : ERROR_CODE_NETWORK_ERROR

The ad request was unsuccessful due to network connectivity.

Error Code 3 : ERROR_CODE_NO_FILL

The ad request was successful, but no ad was returned due to lack of ad inventory.