Firebase messaging doesn't have a default constructor

Question

import 'package:flutter/material.dart';
import 'package:firebase_messaging/firebase_messaging.dart';

import 'package:google_maps_flutter/google_maps_flutter.dart';    

class PushNotificationService
{
  final FirebaseMessaging firebaseMessaging = FirebaseMessaging();

  Future initialize(context) async
   {
    firebaseMessaging.configure(
      onMessage: (Map<String, dynamic> message) async {
        retrieveRideRequestInfo(getRideRequestId(message), context);
       },
       onLaunch: (Map<String, dynamic> message) async {
         retrieveRideRequestInfo(getRideRequestId(message), context);
       },
       onResume: (Map<String, dynamic> message) async {
        retrieveRideRequestInfo(getRideRequestId(message), context);
      },
     );
    }

Manifest:

    <intent-filter>
        <action android:name="FLUTTER_NOTIFICATION_CLICK" />
        <category android:name="android.intent.category.DEFAULT" 
        />
    </intent-filter>

Error: The class 'FirebaseMessaging' doesn't have a default constructor. Try using one of the named constructors defined in 'FirebaseMessaging'.

Which version of Firebase messaging are you using?

quoci
– quoci

2021-03-27 09:03:36 +00:00
Commented Mar 27, 2021 at 9:03 — quoci
– quoci, Commented Mar 27, 2021 at 9:03

Lalit Fauzdar · Accepted Answer · 2021-06-05 17:54:42Z

73

Try FirebaseMessaging.instance instead of FirebaseMessaging(), it should work.

edited Jun 5, 2021 at 17:54

Lalit Fauzdar

6,4494 gold badges29 silver badges55 bronze badges

answered Mar 29, 2021 at 0:54

Abu Saad Papa

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2 Comments

Franklin Premkumar Over a year ago

Yeah that's what I did. Thanks

Abu Saad Papa Over a year ago

@FranklinPremkumar Please mark it as correct answer then

Bijon Sharma · Accepted Answer · 2021-07-26 20:51:31Z

2

try to add add dependencies firebase_core 1.4.0

import 'package:firebase_core/firebase_core.dart';

    @override
      void initState() {
        // TODO: implement initState
        super.initState();
        Firebase.initializeApp();
      }
     
      onPressed: () async {
           String token = await FirebaseMessaging.instance.getToken();
           print(token);
                    
        },

answered Jul 26, 2021 at 20:51

Bijon Sharma

291 bronze badge

Comments

Ryan M · Accepted Answer · 2021-10-27 04:30:47Z

-1

Use FirebaseStorage.instanceFor instead of the default constructor

edited Oct 27, 2021 at 4:30

Ryan M♦

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answered Oct 24, 2021 at 12:21

Miloud1010

1

Comments

Coder · Accepted Answer · 2024-04-19 07:10:51Z

-2

Try FirebaseMessaging.instance

answered Apr 19, 2024 at 7:10

Coder

132 bronze badges

1 Comment

Security Hound Over a year ago

@Coder - This is an exact duplicate of a three year old answer, while it's confirmed this was indeed the solution to the author's problem, in this particular case duplicating an answer without any additional helpful insight is NOT helpful.

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