Firebase Authentication Error

[twinkthakur18 (Twink Studio)]

Dear I made a app which is using Firebase authentication method for user sign in…
but when i directly download from kodular it’s work fine,but after uploading on Playstore during Signin it’s come error, sign in couldn’t done and say- Google may wrong .
what’s the reason please help​

[cian]

Can you show the error please. And what are your trying to do with the signin. Are you also using firebase DB?

[twinkthakur18 (Twink Studio)]

just simple logic
i use firebase authentication to user can sign in sign up.
but when i use through kodular downloaded app they work perfect after login/signup opened another screen,but i have uploaded my same apk file to play store… and if i download that app from play store during signin… it show Google may wrong.
why?

[cian]

So the exact same version with the same version number wont work if you upload it to google store but it does work if you install it direct?

[twinkthakur18 (Twink Studio)]

yes i am using same version no. same version code.

[cian]

What authentication method are you using? email, google, facebook, ??

[twinkthakur18 (Twink Studio)]

Sir i used google signin by Firebase Authentication, If i test my apk file it’s work fine user easily can login but after uploading same Apk file on play store user can able to signin…
it’s show error- Google may wrong,
What’s the problem is please help!

[plang58 (Philipp Lang)]

I read that problem now again, a user in past had the same error.
I use auth too but my app is not finish and if i make a APK and test it than it worked for me. But as i told my app is not published in app store.

It interest me if there is a problem:

My whole Login Process is made for Google. MY app does not work if you install your app without Playstore:
So i hope it will work.

[twinkthakur18 (Twink Studio)]

i found solution
thanks all

[cian]

What is it. Please paste so others find it.

[twinkthakur18 (Twink Studio)]

Go to PlayConsole account-select app-Release Management-app sigin-Appsign in certificate SHA1 copy and paste them in firebase authentication Fingerprint signature
All set,Enjoy​

[plang58 (Philipp Lang)]

where do you mean is that, i cannot find it, can you make a screen shot please.

[twinkthakur18 (Twink Studio)]

Here are some screenshots which help to easy to understand

if you Got it mark it as Solution