Firebase - FLUTTER - TypeError: Class constructor IndexedDBLocalPersistence cannot be invoked without 'new'

MaheshBabu
January 16, 2024
206 views
0 votes
2 Answers

Team,

I have been initializing Firebase like this since I started by following this flutter documentation, but for some reason this throws an error in the debugger, as follows:

TypeError: Class constructor IndexedDBLocalPersistence cannot be
invoked without ‘new’

Could you please help me rectify this?

Here is the Flutter code:

import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'package:pace/firebase_options.dart';
import 'package:pace/pages/auth_page.dart';

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

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Scaffold(
        body: AuthPage(),
      ),
    );
  }
}

Tags: firebase flutter

Answers

- MicheleSciacovelli
- January 1, 2024 at 8:42 pm
- 0 votes
0
I occurred into the same error while trying to release my app on web and after a few attempts I have eventually found a solution for it.
Here are the steps I have performed:
1. Run flutter channel stable to make sure that you are currently using a stable channel and not a beta
2. Run flutter upgrade to update to the latest version of the SDK, Dart SDK will update accordingly.
3. Run flutter --version to check both your Flutter SDK version and your Dart SDK version.
4. Make sure that your pubspec.yaml includes you Dart SDK version in the version constraints specified. (Example: if your Dart SDK version shown in the output provided from flutter --version is 2.19.4, make sure that your code looks something like this sdk: '>=2.19.0 <4.0.0' at least).
5. In my case scenario, the issue is solved using Flutter SDK version 3.7.0 with Dart SDK version 2.19.0, however this is not the latest version, but I am confident that even with the last stable version ( Flutter SDK 3.16.5) the issue shouldn’t occur.
Hopefully this solves the issue!
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