Authorization failure with Google Maps Android API

Question

I am trying to get Google Maps working on my Android project. I did everything by the book but nothing works...

• Google Maps Android API: Authorization failure.

• Cannot resolve Identity from identityId. Dispatching as
  Identities.PSEUDONYMOUS.

• Ensure that the "Google Maps Android API v2" is enabled. Ensure that the following Android Key exists:
  API Key: Android Application (<cert_fingerprint>;<package_name>): GoogleCertificatesRslt: Package signed with unknown certificate*

The API key, fingerprint and package name are correct. Restricting and unrestricting the API key makes no difference. Switchen between debug and release fingerprint makes no difference either. It simply doesn't work whatever I am trying. Any suggestions what I am missing, doing wrong or lousy documented?

Answer 1

The problem was located in local.properties: Instead of MAPS_API_KEY="AbCdEfGhi1234..." it should read MAPS_API_KEY=AbCdEfGhi1234...

Don't surround the key with ""...