Ignoring header X-Firebase-Locale because its value was null. - Firebase - flutter

Question

I am creating a SignIn Page, but when I try to login this error appears:
W/System (17313): Ignoring header X-Firebase-Locale because its value was null.
D/FirebaseAuth(17313): Notifying id token listeners about user ( userId ).
This is my main.dart code:
import 'package:app_mypocket/telas/login/telalogin.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:firebase_core/firebase_core.dart';
import 'firebase_options.dart';
import 'package:flutter/material.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
);
//initilization of Firebase app
// other Firebase service initialization
runApp(MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'My Pocket',
debugShowCheckedModeBanner: false,
theme: ThemeData(
),
home: TelaLogin(),
);
}
}
class HomePage extends StatelessWidget {
#override
Widget build(BuildContext context) => Scaffold(
body: StreamBuilder<User?>(
stream: FirebaseAuth.instance.authStateChanges(),
builder: (context, snapshot) {
if (snapshot.hasData){
return HomePage();
} else{
return TelaLogin();
}
})
);
}
Additional information:
The phone is connected to internet properly;
I wrote this line on manifest.xml inside application tag:
android:usesCleartextTraffic="true";
The password has 6 characters in length;
Email/Password Sign-in method on firebase console is enabled.