graphql_flutter 错误：非抽象类GraphQLWebSocketChannel缺少实现

我正在try 将GraphQL_Ffltter(https://pub.dev/packages/graphql_flutter)用于我的MVVM架构.(https://stacked.filledstacks.com/docs/getting-started/overview)当我try 运行我的代码时，从GraphQL_Ffltter包中收到以下错误

`../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/graphql-5.1.2/lib/src/links/websocket_link/websocket_client.dart:577:7:错误:非抽象类‘GraphQLWebSocketChannel’缺少以下成员的实现:

• WebSocketChannel.ready 试着 Select
• 提供一个实现，
• 从超类或混合继承实现，
• 将类标记为抽象类，或
• 提供"noSuchMethod"实现.

类GraphQLWebSocketChannel扩展StreamChannelMixin&lt；Dynamic&gt； ^^ ../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/web_socket_channel-2.3.0/lib/src/channel.dart:56:22:上下文:这里定义了‘WebSocketChannel.Ready’. 最终future &lt；void&gt；Ready=Future.Value()；`

这是我在main.dart文件中的代码.只要我导入了包，我就会收到错误.

    import 'package:flutter/material.dart';
    import 'package:testing/app/app.locator.dart';
    import 'package:testing/ui/common/app_colors.dart';
    import 'package:testing/ui/setup/setup_bottom_sheet_ui.dart';
    import 'package:testing/ui/setup/setup_dialog_ui.dart';
    import 'package:stacked_services/stacked_services.dart';

    import 'package:graphql_flutter/graphql_flutter.dart';

    import 'app/app.router.dart';

    void main() {
      setupLocator();
      setupDialogUi();
      setupBottomSheetUi();

      runApp(const MyApp());
    }

    class MyApp extends StatelessWidget {
      const MyApp({Key? key}) : super(key: key);

      @override
      Widget build(BuildContext context) {
        HttpLink httpLink = HttpLink("https://api.github.com/graphql");

        AuthLink authLink = AuthLink(
          getToken: () async => 'Bearer PERSONAL_ACCESS_TOKEN',
        );

        Link link = authLink.concat(httpLink);

        ValueNotifier<GraphQLClient> qlClient = ValueNotifier(
          GraphQLClient(
            link: link,
            // The default store is the InMemoryStore, which does NOT persist to disk
            cache: GraphQLCache(store: HiveStore()),
          ),
        );

        return GraphQLProvider(
            client: qlClient,
            child: MaterialApp(
              title: 'Flutter Demo',
              theme: Theme.of(context).copyWith(
                primaryColor: kcBackgroundColor,
                focusColor: kcPrimaryColor,
                textTheme: Theme.of(context).textTheme.apply(
                      bodyColor: Colors.black,
                    ),
              ),
              initialRoute: Routes.startupView,
              onGenerateRoute: StackedRouter().onGenerateRoute,
              navigatorKey: StackedService.navigatorKey,
              navigatorObservers: [
                StackedService.routeObserver,
              ],
            ));
      }
    }