'Error: Not found: 'dart:js' import 'dart:js';

I am creating a PopupMenuButton() in the AppBar section.
This is my file:

import 'dart:js';
import 'package:bfdi_app/settings.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';

class ProfilePage extends StatefulWidget {

  @override
  _ProfilePageState createState() => _ProfilePageState();
}

class _ProfilePageState extends State<ProfilePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(
          'App_Name',
          ),
        actions: <Widget>[
            PopupMenuButton(
              icon: Icon(Icons.settings),
              onSelected:(value){
                if(value==0){
                  Navigator.push(
                    context,
                    MaterialPageRoute(builder: (context)=>SettingPage())
                  );
                }
              },
              itemBuilder: (context) => [
                    PopupMenuItem(
                      child: Text("Settings"),
                      value:0,
               ],
            ),
          ],
       ),
      }

Now I am facing an error in Console Log:

Compiler message:
lib/Pages/addPost.dart:1:8: Error: Not found: 'dart:js'
import 'dart:js';
       ^
lib/Profile/profile.dart:1:8: Error: Not found: 'dart:js'
import 'dart:js';
       ^

I have already added the dependency dart:js, but still getting the same error. Error:

Solution 1:^[1]

EDIT: I have switched to the master channel and all working fine. Although I don't see any requirement of dart.js in your current code. so you can remove that too

ORIGINAL ANSWER: I believe you are using stable channel so try to switch to beta channel. Open your terminal and run,

$ flutter channel beta

Solution 2:^[2]

Go to your flutter installed directory/.pub-cache/hosted/pub.dartlang.org/js-0.6.3-nullsafety.1/lib/js.dart

Delete or comment this line:

export 'dart:js' show allowInterop, allowInteropCaptureThis;

Then try again

Solution 3:^[3]

I just del import 'package:js'. it works for me.

Solution 4:^[4]

Quoting pub.dev:

Depend on it
Add this to your package's pubspec.yaml file:
```
dependencies:
  js: ^0.6.2
```
Install it
You can install packages from the command line:

with pub:
```
$ pub get
```
with flutter:
```
$ flutter pub get
```
Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.
Import it Now in your Dart code, you can use:
```
import 'package:js/js.dart';
```

Solution 5:^[5]

Sounds like an import issue as soon as you are trying to compile for a native application.

Try searching for and delte the incorrect dart:js import (import 'dart:js';).

Have a look at this GitHub issue #70373

Solution 6:^[6]

Try using the js package: https://pub.dev/packages/js#-installing-tab-
You should try to use package:js instead of dart:js

Solution 7:^[7]

Actually mine was solved with just a system restart and a "flutter clean" command. (yes I am using beta channel) But weird thing was the files were existed already but the dependencies somehow couldn't read from the dart packages.

Solution 8:^[8]

in my case just flutter clean solved the issue

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1
Solution 2	Aqeel
Solution 3	????? ????????
Solution 4	tresf
Solution 5	creep3007
Solution 6	Arhaam Patvi
Solution 7	Regetix
Solution 8	Benderradji Khireddine

'Error: Not found: 'dart:js' import 'dart:js';

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

Solution 4:[4]

Solution 5:[5]

Solution 6:[6]

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