Cannot build Ionic app with Firebase

#1

Hi
I created ionic 3 app with firebase connection - using this tut: Building a Ionic Firebase App step by step

the application start correctly, and connected to firebase DB.and can perform CRUD operations.

when I deploy app using command

$ ionic cordova build --release android

I got error message:

No matching client found for package name 'io.ionic.starter'

note: the file ‘google-services.json’ is missing and my app is not shown inside Firebase console pic

I initialize firebase inside app module:

// Initialize Firebase
var config = {
  apiKey: "AIzaSyDGJaayYxyasdufYG7GKo36nUMdsfU",
  authDomain: "firedo-3997a.firebaseapp.com",
  databaseURL: "https://firedo-3997a.firebaseio.com",
  projectId: "firedo-3997a",
  storageBucket: "firedo-3997a.appspot.com",
  messagingSenderId: "578088897558"
};
firebase.initializeApp(config);

please help me deploying this app