This is how i setup my block before and its working well. But this time google signin is not working fine. It shows me my google account option when i select one it cannot successfully signup. What is wrong here?
Make sure that you have uploaded the correct google-services.json in assets
Yes bro, it is correct.
What are results ? can you show a notice on SignedIn event ?
It show this error
com.google.android.gmc.common.api.ApiException:10:
Show the full error
Are you sure that the SHA-1 key is correct. Please confirm it
Have you inserted both SHA1 and SHA256 in your firebase project? If not, then insert it.
If doesn't work
Then create new firebase project and start again 
Not work. Ive already tried these method.
I can solve, but for this you have to share the screen?