Not able to add event listener in constructor #8298

Error messages

[10:59:10 INF] Executing endpoint '/signalr-hubs/messaging'
[10:59:11 ERR] Error when dispatching 'OnConnectedAsync' on hub.
Autofac.Core.DependencyResolutionException: An exception was thrown while activating Castle.Proxies.MessagingHubProxy -> Eduverse.WebRtc.CommunicationService.
 ---> Autofac.Core.DependencyResolutionException: An exception was thrown while invoking the constructor 'Void .ctor(Microsoft.Extensions.Logging.ILogger`1[Eduverse.WebRtc.CommunicationService], Eduverse.WebRtc.IWebRtcDispatcher, Eduverse.SpeechToText.ISpeechToText, Microsoft.Extensions.Options.IOptions`1[Eduverse.WebRtc.WebRtcOptions], Eduverse.DialogueManagers.IDialogueManagersAppService)' on type 'CommunicationService'.
 ---> System.InvalidOperationException: Method may only be called on a Type for which Type.IsGenericParameter is true.
   at System.RuntimeType.get_DeclaringMethod()
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
   --- End of inner exception stack trace ---
   at Autofac.Core.Activators.Reflection.BoundConstructor.Instantiate()
   at Autofac.Core.Activators.Reflection.ReflectionActivator.<>c__DisplayClass14_0.<UseSingleConstructorActivation>b__0(ResolveRequestContext context, Action`1 next)
   at Autofac.Core.Resolving.Middleware.DisposalTrackingMiddleware.Execute(ResolveRequestContext context, Action`1 next)
   at Autofac.Builder.RegistrationBuilder`3.&lt;&gt;c__DisplayClass41_0.&lt;PropertiesAutowired&gt;b__0(ResolveRequestContext context, Action`1 next)
   at Autofac.Core.Resolving.Middleware.ActivatorErrorHandlingMiddleware.Execute(ResolveRequestContext context, 
Action`1 next)
   --- End of inner exception stack trace ---
   at Autofac.Core.Resolving.Middleware.ActivatorErrorHandlingMiddleware.Execute(ResolveRequestContext context, 
Action`1 next)
   at Autofac.Builder.RegistrationBuilder`3.&lt;&gt;c__DisplayClass35_0.&lt;OnPreparing&gt;b__0(ResolveRequestContext context, Action`1 next)
   at Autofac.Core.Resolving.Middleware.CoreEventMiddleware.Execute(ResolveRequestContext context, Action`1 next)
   at Autofac.Core.Lifetime.LifetimeScope.CreateSharedInstance(Guid id, Func`1 creator)
   at Autofac.Core.Lifetime.LifetimeScope.CreateSharedInstance(Guid primaryId, Nullable`1 qualifyingId, Func`1 creator)
   at Autofac.Core.Resolving.Middleware.SharingMiddleware.Execute(ResolveRequestContext context, Action`1 next) 
   at Autofac.Core.Resolving.Middleware.CircularDependencyDetectorMiddleware.Execute(ResolveRequestContext context, Action`1 next)
   at Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, ResolveRequest& request)
   at Autofac.Core.Resolving.ResolveOperation.ExecuteOperation(ResolveRequest& request)
   at Autofac.ResolutionExtensions.TryResolveService(IComponentContext context, Service service, IEnumerable`1 parameters, Object& instance)
   at Autofac.ResolutionExtensions.ResolveOptionalService(IComponentContext context, Service service, IEnumerable`1 parameters)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider)
   at Microsoft.AspNetCore.SignalR.Internal.DefaultHubActivator`1.Create()
   at Microsoft.AspNetCore.SignalR.Internal.DefaultHubDispatcher`1.OnConnectedAsync(HubConnectionContext connection)
   at Microsoft.AspNetCore.SignalR.Internal.DefaultHubDispatcher`1.OnConnectedAsync(HubConnectionContext connection)
   at Microsoft.AspNetCore.SignalR.HubConnectionHandler`1.RunHubAsync(HubConnectionContext connection)
[10:59:11 INF] Executed endpoint '/signalr-hubs/messaging'

Code snippets: Communication Service injected into MessagingHub

[Authorize(Roles = DefaultRoleConsts.Learner)]
[DisableConventionalRegistration]
public class MessagingHub : AbpHub
{
    private readonly ILogger<MessagingHub> _logger;
    private readonly ICommunicationService _communicationService;

    public MessagingHub(
        ILogger<MessagingHub> logger,
        ICommunicationService communicationService,
        IUnitOfWorkManager unitOfWorkManager
    )
    {
        _logger = logger;
        _communicationService = communicationService;
    }

CommunicationService snippet

public class CommunicationService : ICommunicationService
{
    private readonly ILogger<CommunicationService> _logger;
    private readonly ISpeechToText _stt;
    private readonly IWebRtcDispatcher _dispatcher;
    private readonly IDialogueManagersAppService _dialogueManagersAppService;

    public CommunicationService(ILogger<CommunicationService> logger,
        IWebRtcDispatcher dispatcher,
        ISpeechToText stt,
        IOptions<WebRtcOptions> options,
        IDialogueManagersAppService dialogueManagersAppService)
    {
        _logger = logger;
        _dispatcher = dispatcher;
        _stt = stt;
        _dialogueManagersAppService = dialogueManagersAppService;


        // SetupHandler();
        _dialogueManagersAppService.OnChatResponseChunkReceived += (sender, evt) => {
            _dispatcher.GetWebRtcPeerConnectionFromConversationId(evt.ConversationId, out var peerConnection);
            if(peerConnection == null){
                _logger.LogError("PeerConnection not found for conversationId: {conversationId}", evt.ConversationId);
                return;
            }

            var message = new { type = "chatChunk", data = evt.Text };
            var jsonString = JsonSerializer.Serialize(message);
            peerConnection.SendData(jsonString);
        };

DialogueManager Snippet

[RemoteService(IsEnabled = false)]
    public class DialogueManagersAppService : EduverseAppService, IDialogueManagersAppService
    {
        protected IConversationLogRepository _conversationLogRepository;
        protected ConversationLogManager _conversationLogManager;
        protected IConversationRepository _conversationRepository;
        protected ConversationManager _conversationManager;
        protected IFeedbackLogRepository _feedbackLogRepository;
        protected FeedbackLogManager _feedbackLogManager;
        protected IScenarioRepository _scenarioRepository;
        private readonly IUnitOfWorkManager _unitOfWorkManager;
        protected ILlmService _llmService;
        public event EventHandler<ChatResponseChunkEventArgs>? OnChatResponseChunkReceived;
        public event EventHandler<ChatResponseEndedEventArgs>? OnChatResponseEnded;