How to fix error : Task :app:processDebugGoogleServices FAILED Execution failed for task ':app:processDebugGoogleServices'. > No matching client found for package name 'com.example.appname'

PROBLEM:

Task :app:processDebugGoogleServices FAILED Execution failed for task ':app:processDebugGoogleServices'. > No matching client found for package name 'com.example.appname' 

Solution:

In my case:

Google Services JSON file:

Step: 1 => Go to https://console.firebase.google.com/ 

Create New Project / Choose existing project.

Click on the Android icon to add a new app to your Firebase project.

Enter your Android app's package name.

Also Enter App Name (Nick Name)

Click Register Button.

Now, google-services.json file is ready for download.

Step: 2 => Download the google-services.json file from the Google Developer Console

Step: 3 => Place it in the app directory of your Android project


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