Hi All, thanks first for your helpfull comments.
I already have the Facebook Sample Demo Working for Month, but I decided to me a routine check and I got the message in my Android App, Invalidid key hash. The key hash LEDPb4QW5Uu6JPK4UfQI11Ad64d= dones not match any stored key hashes...
using Firebase Authentication/Facebook I'm getting the problem as follows:
- I'm giving to the user the option to use FaceBook OR Google authetication
- If I authenticated an user/email using Google, when I try to register again using FB Firebase raises the error message: