Android Google SignIn not working in debug mode: GoogleSignInResult is false

Question

I have been following this tutorial to get Google SignOn going: https://developers.google.com/identity/sign-in/android/start-integrating

When I run my application lo

Answer 1

EDITED

The answer is derived from this, as it will applicable for this problem also

I am Enclosing the Answer here

The problem is due to the Signing Certificate and the SHA-1 certificate fingerprint. Add the following SHA-1 certificates into your googleApi credentials. there are 2 cases

1.If you are running in debug mode add the SHA-1 fingerprint generated by the following

"C:\Program Files\Java\jre1.8.0_101\bin\keytool" -list -v -keystore "%USERPROFILE%\.android\debug.keystore" -alias androiddebugkey -storepass android -keypass android

2.If you have configured Signing Config then use SHA-1 fingerprint generated by following

"C:\Program Files\Java\jre1.8.0_101\bin\keytool" -list -v -keystore "[youKeyPath]\youKey.jks"

I recommend you to add both the SHA-1 fingerprints in your googleApi credentials