Error 12501 authenticating with google sign-in

Question

I\'m using google sign-in services to authenticate users that use my app. I got it to work when I just requested email information

GoogleSignInOptions gso =          


        

Answer 1

I experienced a similar problem. In my case, it was because the server client ID that I was using was from a different project than the client keys. It turns out that they need to be from the same project.