Create failed The request failed because the Android package name and fingerprint are already in use

[bh123]

HI,
I'm trying to add a new OAuth 2 credential for an Android Game but I got this error:

 Error:
Create failed
The request failed because the Android package name and fingerprint are already in use
Tracking number: c8805513866815979

I also check my other Gmail accounts (console panel) but I did not use from them to create Oauth2 credential in this Gmail accounts (Console panel).


now, please help me to:
1- how I can create Oauth2 credential for this game by my current Gmail account (without changing package name or SHA-1 sign) ?
2-how I can recognize which Gmail account register with my game package name and SHA-1 configs?