Flutter 参数类型'；List<；Dynamic&>不能分配给参数类型'；List<；SingleChildWidget&>'；

  @override
  Widget build(BuildContext context) {
    return MultiBlocProvider(
      providers: AppPages.allBlocProviders(context) ,
      child: ScreenUtilInit(
      builder: (context, child) =\>  MaterialApp(
          debugShowCheckedModeBanner: false,
          home: const Welcome(),
          theme: ThemeData(
            appBarTheme: const AppBarTheme(
              iconTheme: IconThemeData(
                color: AppColors.primaryText
              ),
              elevation: 0,
              backgroundColor: Colors.white
            )
          ),
          onGenerateRoute: AppPages.GenerateRouteSettings,
        ),
      )
    );
  }

这是导致错误的主要DART文件

class PageEntity{
  String route;
  Widget page;
  dynamic bloc;

  PageEntity({required this.route, required this.page,  this.bloc});
}

这是帮助循环访问提供程序的实体类

class AppPages{

  static List<PageEntity> routes (){
    return [
      PageEntity(
      route: AppRoutes.INITIAL, 
      page: const Welcome(), 
      bloc: BlocProvider(create: (_)=>WelcomeBloc(),)
    ),
      PageEntity(
      route: AppRoutes.SING_IN, 
      page: const SignInPage(), 
      bloc: BlocProvider(create: (_)=>SignInBlocs(),)
    ),
      PageEntity(
      route: AppRoutes.REGISTER, 
      page: const Register(), 
      bloc: BlocProvider(create: (_)=>RegisterBlocs(),)
    ),
      PageEntity(
      route: AppRoutes.APPLICATION, 
      page: const Welcome(), 
    ),
    ];
  }


// return all the bloc providers
   static List<dynamic> allBlocProviders(BuildContext context){
    List<dynamic> blocProviders = <dynamic>[];
    for(var bloc in routes()){
    
        blocProviders.add(bloc.bloc);
      
    }
    return blocProviders;
  }class AppPages{

  static List<PageEntity> routes (){
    return [
      PageEntity(
      route: AppRoutes.INITIAL, 
      page: const Welcome(), 
      bloc: BlocProvider(create: (_)=>WelcomeBloc(),)
    ),
      PageEntity(
      route: AppRoutes.SING_IN, 
      page: const SignInPage(), 
      bloc: BlocProvider(create: (_)=>SignInBlocs(),)
    ),
      PageEntity(
      route: AppRoutes.REGISTER, 
      page: const Register(), 
      bloc: BlocProvider(create: (_)=>RegisterBlocs(),)
    ),
      PageEntity(
      route: AppRoutes.APPLICATION, 
      page: const Welcome(), 
    ),
    ];
  }


// return all the bloc providers
   static List<dynamic> allBlocProviders(BuildContext context){
    List<dynamic> blocProviders = <dynamic>[];
    for(var bloc in routes()){
    
        blocProviders.add(bloc.bloc);
      
    }
    return blocProviders;
  }

}
This is where all the providers lies

我try 了什么:

我try 将返回类型动态更改为BlocProvider.

我将Providers属性更改为AppPages.allBLocProviders(Context)为[...AppPages.allBLocProviders(Context)].