initializing all Firebase APIs for app [DEFAULT]

I created a flutter app and Add Firebase to the app. I configure firebase according to the documentation of firebase. But when running the app, the app is working but in debugging, the console below error message shows. How I am going to fix this issue?

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this the main.dart file

import 'package:flutter/material.dart';
import 'package:firebase_core/firebase_core.dart';
import 'firebase_options.dart';
import './routes/chat_route.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp(
    options: DefaultFirebaseOptions.currentPlatform,
  );
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home:ChatRoute() ,
    );
  }
}

This is the second warring message when I am trying to fetch data from firebase

[Also Check This One]

This is the route I used to fetch data from firebase import 'package:flutter/material.dart'; import 'package:cloud_firestore/cloud_firestore.dart';

class ChatRoute extends StatelessWidget {
  ChatRoute({Key? key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Chat')),
      body: StreamBuilder(
        builder: (context, AsyncSnapshot<QuerySnapshot> snapshot) {
          if (snapshot.connectionState == ConnectionState.waiting) {
            return const Center(
              child: CircularProgressIndicator(),
            );
          }
          final documents = snapshot.data!.docs;
          return ListView.builder(
              itemCount: documents.length,
              itemBuilder: ((ctx, index) => Container(
                    padding: const EdgeInsets.all(8),
                    child: Text(documents[index]['text']),
                  )));
        },
        stream: FirebaseFirestore.instance
            .collection('chats/vpgBHNKfkqOGirS3S3BX/messages')
            .snapshots(),
      ),
      floatingActionButton: FloatingActionButton(
        child: const Icon(Icons.add),
        onPressed: () {
          FirebaseFirestore.instance
              .collection('chats/vpgBHNKfkqOGirS3S3BX/messages')
              .add({'text': 'This the dummy data'});
        },
      ),
    );
  }
}