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Flutter web is not working after upgrading to flutter 3.24

after upgrading flutter to 3.24 I created a brand new application and run it on chrome I am getting this exception in console

The following JSNoSuchMethodError was thrown building NotificationListener<NavigationNotification>:
TypeError: Cannot read properties of undefined (reading 'mapEquals')

The relevant error-causing widget was:
  MaterialApp
  MaterialApp:file:///C:/Users/Munsif%20Ali/Desktop/Optemas/referee_dashboard/lib/main.dart:14:18

When the exception was thrown, this was the stack:
packages/flutter/src/widgets/shortcuts.dart 834:10                       set shortcuts
shortcuts.dart:834
packages/flutter/src/widgets/shortcuts.dart 1076:7                       initState
shortcuts.dart:1076
packages/flutter/src/widgets/framework.dart 5748:55                      [_firstBuild]
framework.dart:5748
packages/flutter/src/widgets/framework.dart 5593:5                       mount
framework.dart:5593
packages/flutter/src/widgets/framework.dart 4468:15                      inflateWidget
framework.dart:4468
packages/flutter/src/widgets/framework.dart 3963:18                      updateChild
framework.dart:3963
packages/flutter/src/widgets/framework.dart 5642:16                      performRebuild
framework.dart:5642
packages/flutter/src/widgets/framework.dart 5333:7                       rebuild
framework.dart:5333
packages/flutter/src/widgets/framework.dart 5599:5                       [_firstBuild]
framework.dart:5599
packages/flutter/src/widgets/framework.dart 5593:5                       mount
framework.dart:5593
packages/flutter/src/widgets/framework.dart 4468:15                      inflateWidget
framework.dart:4468
packages/flutter/src/widgets/framework.dart 3963:18                      updateChild
framework.dart:3963
packages/flutter/src/widgets/framework.dart 5642:16                      performRebuild
framework.dart:5642
packages/flutter/src/widgets/framework.dart 5333:7                       rebuild
framework.dart:5333
packages/flutter/src/widgets/framework.dart 5599:5                       [_firstBuild]
framework.dart:5599
packages/flutter/src/widgets/framework.dart 5593:5                       mount
framework.dart:5593
packages/flutter/src/widgets/framework.dart 4468:15                      inflateWidget
framework.dart:4468
packages/flutter/src/widgets/framework.dart 3963:18                      updateChild
framework.dart:3963
packages/flutter/src/widgets/framework.dart 5642:16                      performRebuild
framework.dart:5642
packages/flutter/src/widgets/framework.dart 5780:11                      performRebuild
framework.dart:5780
packages/flutter/src/widgets/framework.dart 5333:7                       rebuild
framework.dart:5333
packages/flutter/src/widgets/framework.dart 5599:5                       [_firstBuild]
framework.dart:5599
packages/flutter/src/widgets/framework.dart 5771:11                      [_firstBuild]
framework.dart:5771
packages/flutter/src/widgets/framework.dart 5593:5                       mount
framework.dart:5593
packages/flutter/src/widgets/framework.dart 4468:15                      inflateWidget
framework.dart:4468
packages/flutter/src/widgets/framework.dart 3963:18                      updateChild
framework.dart:3963
packages/flutter/src/widgets/framework.dart 5642:16                      performRebuild
framework.dart:5642
packages/flutter/src/widgets/framework.dart 5333:7                       rebuild
framework.dart:5333
packages/flutter/src/widgets/framework.dart 5599:5                       [_firstBuild]
framework.dart:5599
packages/flutter/src/widgets/framework.dart 5593:5                       mount
framework.dart:5593
packages/flutter/src/widgets/framework.dart 4468:15                      inflateWidget
framework.dart:4468
packages/flutter/src/widgets/framework.dart 3963:18                      updateChild
framework.dart:3963
packages/flutter/src/widgets/framework.dart 5642:16                      performRebuild
framework.dart:5642
packages/flutter/src/widgets/framework.dart 5780:11                      performRebuild
framework.dart:5780
packages/flutter/src/widgets/framework.dart 5333:7                       rebuild
framework.dart:5333
packages/flutter/src/widgets/framework.dart 5599:5                       [_firstBuild]
framework.dart:5599
packages/flutter/src/widgets/framework.dart 5771:11                      [_firstBuild]
framework.dart:5771
packages/flutter/src/widgets/framework.dart 5593:5                       mount
framework.dart:5593
packages/flutter/src/widgets/framework.dart 4468:15                      inflateWidget
framework.dart:4468
packages/flutter/src/widgets/framework.dart 3963:18                      updateChild
framework.dart:3963
packages/flutter/src/widgets/framework.dart 5642:16                      performRebuild
framework.dart:5642
packages/flutter/src/widgets/framework.dart 5333:7                       rebuild
framework.dart:5333
packages/flutter/src/widgets/framework.dart 5599:5                       [_firstBuild]
framework.dart:5599
packages/flutter/src/widgets/framework.dart 5593:5                       mount
framework.dart:5593
packages/flutter/src/widgets/framework.dart 4468:15                      inflateWidget
framework.dart:4468
packages/flutter/src/widgets/framework.dart 3963:18                      updateChild
framework.dart:3963
packages/flutter/src/widgets/framework.dart 5642:16                      performRebuild
framework.dart:5642
packages/flutter/src/widgets/framework.dart 5780:11

here is app code

import 'package:flutter/material.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(const MyApp());
}

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Home(),
    );
  }
}

class Home extends StatelessWidget {
  const Home({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Hello World'),
      ),
      body: const Center(
        child: Text('Hello World'),
      ),
    );
  }
}

enter image description here

Tags:

2

Answers


  1. 0

    The app has to work if you remove WidgetsFlutterBinding.ensureInitialized();

    But how to avoid removing ensureInitialized I don’t know yet.

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  2. 0

    I have the same problem – but in fact I get different errors: both JSNoSuchMethodError and TypeError, but also, for example.

    Reject promise with error: TypeError: unable to read undefined property (read 'SharedPreferencesPlugin')

    or

    The message on the flutter/lifecycle channel was rejected before it could be handled.
This happens when the plugin sends messages to the framework page before the framework has had a chance to register a listener. See the ChannelBuffers API documentation to learn how to configure the channel to expect more messages or to expect message rejection:
https://api.flutter.dev/flutter/dart-ui/ChannelBuffers-class.html

    From what I’ve noticed the problem is in Flutter’s preparation of the web platform in the /web directory. I tried flutter clean and flutter pub cache clean. I even created a new ‘Hello World’ project without external dependencies. All to no effect. The only thing that helped was swapping the contents of the PROJECT_DIR/web/index.html file:

    <!DOCTYPE html>
<html>
<head>
  <!--
    If you are serving your web app in a path other than the root, change the
    href value below to reflect the base path you are serving from.

    The path provided below has to start and end with a slash "/" in order for
    it to work correctly.

    For more details:
    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base

    This is a placeholder for base href that will be replaced by the value of
    the `--base-href` argument provided to `flutter build`.
  -->
  <base href="$FLUTTER_BASE_HREF">

  <meta charset="UTF-8">
  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
  <meta name="description" content="A new Flutter project.">

  <!-- iOS meta tags & icons -->
  <meta name="apple-mobile-web-app-capable" content="yes">
  <meta name="apple-mobile-web-app-status-bar-style" content="black">
  <meta name="apple-mobile-web-app-title" content="test_app">
  <link rel="apple-touch-icon" href="icons/Icon-192.png">

  <!-- Favicon -->
  <link rel="icon" type="image/png" href="favicon.png"/>

  <title>test_app</title>
  <link rel="manifest" href="manifest.json">
</head>
<body>
  <script src="flutter_bootstrap.js" async></script>
</body>
</html>

    , to the old [deprecated] version:

    <!DOCTYPE html>
<html>
<head>
    <!--
      If you are serving your web app in a path other than the root, change the
      href value below to reflect the base path you are serving from.

      The path provided below has to start and end with a slash "/" in order for
      it to work correctly.

      For more details:
      * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base

      This is a placeholder for base href that will be replaced by the value of
      the `--base-href` argument provided to `flutter build`.
    -->
    <base href="$FLUTTER_BASE_HREF">

    <meta charset="UTF-8">
    <meta content="IE=Edge" http-equiv="X-UA-Compatible">
    <meta content="A new Flutter project." name="description">

    <!-- iOS meta tags & icons -->
    <meta content="yes" name="apple-mobile-web-app-capable">
    <meta content="black" name="apple-mobile-web-app-status-bar-style">
    <meta content="wheelio" name="apple-mobile-web-app-title">
    <link href="icons/Icon-192.png" rel="apple-touch-icon">

    <!-- Favicon -->
    <link href="favicon.png" rel="icon" type="image/png"/>

    <title>wheelio</title>
    <link href="manifest.json" rel="manifest">

    <script>
        // The value below is injected by flutter build, do not touch.
        const serviceWorkerVersion = null;
    </script>
    <!-- This script adds the flutter initialization JS code -->
    <script defer src="flutter.js"></script>
</head>
<body>
<script>
    window.addEventListener('load', function(ev) {
      // Download main.dart.js
      _flutter.loader.loadEntrypoint({
        serviceWorker: {
          serviceWorkerVersion: serviceWorkerVersion,
        },
        onEntrypointLoaded: function(engineInitializer) {
          engineInitializer.initializeEngine().then(function(appRunner) {
            appRunner.runApp();
          });
        }
      });
    });
</script>
</body>
</html>
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