[SOLVED] Google Sign-In working in Debug Mode but not working in Release mode | Error code 10 Developer Error

In this post, We will show you how to solve Google SignIn Developer Error (Error Code-10).

We also solve an error of Google SignIn when SignIn working in debug mode but not working in Release mode.

Mainly, it is the error of the SHA-1 of our app.

Some reasons for Google SignIn Error Code 10 (Developer Error)

If you run your Google SignIn enabled app on another PC then use SHA-1 of that PC in Google API. (Follow Step-1 to Step-6)
If you release your app on Google Play then use release SHA-1 Key available on Google Play console. (Follow Step-7 to Step-9 and then Step-5 and Step-6)

How to find and use SHA-1, if you have to run your app on another PC.

Step-1. Open Android Studio and open your project.

Step-2. Then Open Views from Menubar then Tool Windows then click on Gradle.

Open Gradle from Android Studio

Step-4. Then open your Project Name -> app -> Tasks -> android -> signing report

Find SHA-1 in Android Studio

Then Your SHA-1 is written in your Run Section at the bottom of your Android Studio.

Then create an OAuth client in your Google API console and add your Sha-1 in there.

Step 5. open https://console.developers.google.com/ then select your Project and open Credentials here from the left menu.

Open credentials in Google Api Console

Step-6. Under Create Credentials, create an OAuth Client and paste that SHA-1 Key here.

Create an OAuth client in Google Api Console

Now, with the above method, you can easily remove developer Error if you want to run Google SignIn enabled app in two different PCs.

If Google SignIn working in Debug mode, but not working in release mode then follow the below steps.

Step-7. GoTo https://play.google.com and open your app here

Step-8 Then go to Release Management and then click App Signing

Open App Signing in Google Play Console

Step-9 Copy SHA-1 under App Signing Certificate and follow Step-5 and Step-6 of this tutorial.

Now you have successfully learned about Google SignIn Error code-10 and why it is called Developer error.

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