Missing api_key/current key with Google Services 3.0.0

Question

Since I upgraded the project with the latest version of google services and libraries (9.0.0), I have this strange issue :

Grade console :

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Answer 1

You need to add SHA certificate fingerprints to your project and then download the google-services.jason file again, which should contain "api_key": [{ "current_key": "xxxxxx" }] automatically.

You can view following page to see how to generate the fingerprints:

https://developers.google.com/android/guides/client-auth

On windows, just execute following command, and use android as password for debug purpose:

keytool -exportcert -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore