FCM Fallback error: Default FirebaseApp is not initialized

[franciscohanna92]

I'm trying to configure the FCM fallback delivery following the steps in this guide.

However, as soon as I open the application I get the following error:

Default FirebaseApp is not initialized in this process com.staffcom.mobile. Make sure to call FirebaseApp.initializeApp(Context) first.

Project dependencies:

"expo": "^51.0.17",
"pushy-react-native": "^1.0.40",
"react-native": "0.74.2",

Am I missing some step that is not documented to make the FCM fallback work in React Native?

[pushy]

Hi @franciscohanna92,
Thanks for reaching out. We'd be glad to assist.

You will need to follow all instructions under Option 1 in the Firebase docs to resolve this issue:
https://firebase.google.com/docs/android/setup#console

Most importantly, you will need to include google-services.json and add the following to the app-level build.gradle:

apply plugin: 'com.android.application'

// Add the following line:
apply plugin: 'com.google.gms.google-services'  // Google Services plugin

Please give it a try, and let us know if you face any issues.