Changing Firebase Package Name

I have a app with Google Sign-In integrated with Firebase. I recently changed app package name for release purpose. and now running throwing this error: Error:Execution failed for

Solution 1:

As Eurosecom commented, you can just add a new Android app to your existing Firebase project with the new package name. After doing this, download the updated google-services.json and add it to your app.

Note that Firebase does not use the actual package name from your Java code, but uses the applicationId from your app's build.gradle file:

defaultConfig {
    applicationId "com.firebase.hearthchat"

When you initially create a project in Android Studio, the package name and application id will have the same value. But if you refactor your code into a different package, the application id won't be updated. That explains why the app will continue to work after such a refactoring. But it can be confusing at times, which is why I prefer keeping them in sync.

Solution 2:

If you are using Firebase assistant then:

• Delete your app in the Firebase console in the project settings.
• Back in Firebase assistant reconnect to the Firebase for any service.
• It will ask you to sync with the project. Click on Sync.
• The app with new package will be added and the google-services.json file will be automatically updated.

Also note that the package name of the applicationId value in the build.gradle file is considered.

Cheers

Solution 3:

There's a better way of resolving this issue.The error can be as result of you having a GoogleService Json file in your app folder, All you need to do is; try and locate your google-service.json file under app folder, and change the package_Id to the new package_id you have created; Save, Do a Clean and Rebuild Project, your problem would be resolve. Hope this will help you. It works for me. You can kindly votes if this also help you. Thanks