Error: TypeError: Instance of 'LinkedMap<String, dynamic>': type 'LinkedMap<String, dynamic>' is not a subtype of type 'JSObject' about flutter-webrtc

[SaloxiddinTursunaliev]

cloudwebrtc

This didn't work

[lingguox]

我也遇到了，需要帮忙解决，谢谢。
errors.dart:297 Uncaught (in promise) Error: TypeError: Instance of 'LinkedMap<String, dynamic>': type 'LinkedMap<String, dynamic>' is not a subtype of type 'JSObject'
at Object.throw_ [as throw] (errors.dart:297:3)
at Object._failedAsCheck (rti.dart:1385:3)
at dart_rti.Rti.new._generalAsCheckImplementation (rti.dart:1363:3)
at createPeerConnection (factory_impl.dart:45:39)
at createPeerConnection.next ()
at runBody (async_patch.dart:84:54)
at Object._async [as async] (async_patch.dart:127:5)
at factory_impl.RTCFactoryWeb._internal.createPeerConnection (factory_impl.dart:33:49)
at Object.createPeerConnection (factory_impl.dart:90:8)

[cloudwebrtc]

It has been fixed in dart-webrtc 1.4.1. Please delete pubspec.lock under your project and re-run flutter pub get. This issue will be fixed.

https://github.com/flutter-webrtc/dart-webrtc/releases/tag/1.4.1

[Thasln]

It has been fixed in dart-webrtc 1.4.1. Please delete pubspec.lock under your project and re-run flutter pub get. This issue will be fixed.

https://github.com/flutter-webrtc/dart-webrtc/releases/tag/1.4.1

This issue same as mine. But the code using flutter_webrtc instead of dart_webrtc. I have done what you've said but it still don't working. Also when im using dart_webrtc, i cant use some methods like RTCVideoRenderer. I dont know what should i do. Can you help.

[cloudwebrtc]

Hey, you don't need to change to dart-webrtc. In fact, flutter-webrtc depends on dart 1.4.0 and above, but when you run flutter pub get for the first time, pubspec.lock should be locked to 1.4.0, but when You delete pubspec.lock and run flutter pub get again, it should be updated to 1.4.1

https://github.com/flutter-webrtc/flutter-webrtc/blob/main/pubspec.yaml#L11

[mitch2na]

I am getting this same error when running dart-webrtc 1.4.1

Looks like you reverted the mapper in 1.4.0 to this:

final jsRtcPc = web.RTCPeerConnection(
        {...constr, ...configuration} as web.RTCConfiguration);

but back in dart-webrtc 1.3.0 it was this:

final jsRtcPc = web.RTCPeerConnection(
        jsify({...constr, ...configuration}) as web.RTCConfiguration);

[lingguox]

fixed！已经搞定！
不要替换换PUB_HOSTED_URL环境变量，要继续使用https://pub.dev。是版本兼容问题，flutter 3.19.5升级dart-webrtc到1.4.3

pubspec.yaml：
name: flutter_hello
description: "A new Flutter project."

publish_to: 'none' # Remove this line if you wish to publish to pub.dev

version: 1.0.0+1

environment:
sdk: '>=3.3.3 <4.0.0'

dependencies:
flutter:
sdk: flutter

cupertino_icons: ^1.0.2
http: ^1.2.1
flutter_webrtc: ^0.10.3
path_provider: ^2.0.2
web_socket_channel: ^2.2.0
fluttertoast: ^8.2.4
permission_handler: ^10.2.0
sdp_transform: ^0.3.2

dev_dependencies:
flutter_test:
sdk: flutter
pedantic: ^1.11.0
flutter_lints: ^3.0.0

flutter:

uses-material-design: true

[lingguox]

pub get后自动升级了dart_webrtc
pubspec.lock：

dart_webrtc:
dependency: transitive
description:
name: dart_webrtc
sha256: ef3ba75d13e8b8d9949bf4389de4d5dc5d9914faae8004f59b44fa0c15889d9e
url: "https://pub.dev"
source: hosted
version: "1.4.3"