Error when recreating a Client ID for an Android App in the API Console

Question

I created a Client ID for my Android App in the API Console specifying the package name (com.clc.mmm.free) and the Certificate fingerprint (SHA1). Then I

Answer 1

I had same issue. It was not any issue on google side.

First I have added fingerprint and package without any issues. I deleted it. Tried to add fingerprint with different package name. Then I got the error. I realized that the problem was not related incomplete deletion of my old entry.

The issue was that same pair of package and fingerprint was added by android dev in different project long before.

You can add same fingerprint with different package without any problems. That could be a hint when to troubleshoot what's going on.