GooglePlay - wrong signing key for app bundle

In my case the issue was Android App bundle, I had forgotten to increment the versionCode for the project and it was not showing that error on the console. Instead, it was showing the error related to certificate SHA.

The solution was a very basic one. I had to clean my project and then rebuild it.

Android Studio was signing my app bundle with the old certificate i was using.

What I did previously is go to Build -> Generate Signed Bundle / APK and i changed the jks file in the file selector to the new upload jks. It seems Android Studio caches the old certificate path and uses it even though I've selected a new one. Might be a bug in AS.

So yeah ... now if I clean the project every time i change the jks file it works, the apk or app bundle gets signed with the proper certificate...

I see there are an answer but in my case I forgot to remove

debuggable = true

from app build.gradle

I tried using the multiple answers here & in this question, but somehow I was getting this error because I had some issues with my android/app/build.gradle and android/gradle.properties files.

Two things you should check (in addition to the other solutions here) are:

1. In android/gradle.properties and android/app/build.gradle, make sure your keystore variables match exactly.
   • In android/gradle.properties, you probably have something like this:

     MYAPP_RELEASE_STORE_FILE=<>
     MYAPP_RELEASE_KEY_ALIAS=<>
     MYAPP_RELEASE_STORE_PASSWORD=<>
     MYAPP_RELEASE_KEY_PASSWORD=<>
     

   • Make sure these variable names exactly match those in android/app/build.gradle:

     android {
         ...
         signingConfigs {
             release {
                 if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
                     storeFile file(MYAPP_RELEASE_STORE_FILE)
                     storePassword MYAPP_RELEASE_STORE_PASSWORD
                     keyAlias MYAPP_RELEASE_KEY_ALIAS
                     keyPassword MYAPP_RELEASE_KEY_PASSWORD
                 }
             }
         }
     }
     

2. In android/app/build.gradle, make sure you set signingConfig to signingConfigs.release in your release buildTypes:

   android {
       ...
       buildTypes {
           debug ...
           release {
               signingConfig signingConfigs.release
           }
       }
   }
   

Note: If you're doing react-native development and found yourself here, make sure you follow all steps on "Publishing to Google Play Store". I thought I could skip a few steps without causing problems, and that led to hours of debugging