Flutter Error: Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel.)

Question

I'm working on a Flutter project. Here is my main.dart file.

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

While running it, here is the error I obtained :

ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null)

What can I try to fix this?

I noticed you've made some edits to your question after I made some changes for clarity. Just a heads-up, the edits I made were aimed at improving understanding and assisting you more effectively. — Nipul Rathod
– Nipul Rathod, Commented May 9, 2024 at 13:13
Yes, the modifications you suggested have been applied to my question to improve its clarity and understanding, as well as to assist me more effectively. — Kizza
– Kizza, Commented May 9, 2024 at 13:21
Did you manage to solve the issue? I am getting the same error — Jean Eric
– Jean Eric, Commented May 28, 2024 at 7:45

Nipul Rathod · Accepted Answer · 2024-05-09 13:06:29Z

0

Try this option instead of DefaultFirebaseOptions.currentPlatform:

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp(
    options: const FirebaseOptions(
      apiKey: "project apikey",
      appId: "project appId",
      messagingSenderId: "project messagingSenderId",
      projectId: "projectId",
    ),
  );
  runApp(const MyApp());
}

You can find your apiKey, appId, messagingSenderId and ProjectId from firebase's setting Project settings/General.

answered May 9, 2024 at 13:06

Nipul Rathod

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2 Comments

Kizza Over a year ago

Yes, I've tried that as well, but I still get the same error. I can't seem to understand.

Sufyan Kamil Aug 28 at 10:10

Encountered same issue.

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