Android Studio Gradle: Error:Execution failed for task ‘:app:processDebugGoogleServices’. > No matching client found for package

"client": [
{
  "client_info": {
    "mobilesdk_app_id": "9:99999999:android:9ccdbb6c1ae659b8",
    "android_client_info": {
      "package_name": "[packagename]"
    }
  }

package_name must match what’s in your manifest file. you can find the google-services.json file if you look in the example photo below.