Got the same error in my Angular project. I know the question is for android but this is the question that pops up when I searched the error for angular so hopefully, it would help another person in the near future.
Make sure you're importing the right variable. In the app.module.ts file:
import { FIREBASE } from 'src/environments/firebase';
imports: [
AngularFireModule.initializeApp(FIREBASE.firebase)
],
firebase.ts (environment file) fill with your config info from firebase.
export const FIREBASE = {
production: false,
firebase: {
apiKey: "",
authDomain: "",
databaseURL: "",
projectId: "",
storageBucket: "",
messagingSenderId: "",
appId: "",
measurementId: ""
}
};
So make sure you're importing the right variable. Took me some time to figure out. Happy coding!