c# - SignalR cannot read property client of undefined

Question

I'm trying to add SignalR to my project (ASPNET MVC 4). But I can't make it work.

In the below image you can see the error I'm receiving. I've read a lot of stackoverflow posts but none of them is resolving my issue.

This is what I did so far:

1) Ran Install-Package Microsoft.AspNet.SignalR -Pre
2) Added RouteTable.Routes.MapHubs(); in Global.asax.cs Application_Start()
3) If I go to http://localhost:9096/Gdp.IServer.Web/signalr/hubs I can see the file content
4) Added <modules runAllManagedModulesForAllRequests="true"/> to Web.Config
5) Created folder Hubs in the root of the MVC application
6) Moved jquery and signalR scripts to /Scripts/lib folder (I'm not using jquery 1.6.4, I'm using the latest)

This is my Index.cshtml

<h2>List of Messages</h2>

<div class="container">
    <input type="text" id="message" />
    <input type="button" id="sendmessage" value="Send" />
    <input type="hidden" id="displayname" />
    <ul id="discussion">
    </ul>
</div>

@section pageScripts
{
    <!--Reference the SignalR library. -->
    <script src="@Url.Content("~/Scripts/jquery.signalR-1.0.0-rc1.min.js")" type="text/javascript"></script>
    <!--Reference the autogenerated SignalR hub script. -->
    <script type="text/javascript" src="~/signalr/hubs"></script>
    <script src="@Url.Content("~/Scripts/map.js")" type="text/javascript"></script>
}

This is my IServerHub.cs file (located inside Hubs folder)

namespace Gdp.IServer.Ui.Web.Hubs
{
    using Microsoft.AspNet.SignalR.Hubs;
    [HubName("iServerHub")]
    public class IServerHub : Hub
    {
        public void Send(string name, string message)
        {
            Clients.All.broadcastMessage(name, message);
        }
    }
}

And this is map.js

$(function () {

    // Declare a proxy to reference the hub. 
    var clientServerHub = $.connection.iServerHub;

    // Create a function that the hub can call to broadcast messages.
    clientServerHub.client.broadcastMessage = function (name, message) {
        $('#discussion').append('<li><strong>' + name + '</strong>:&nbsp;&nbsp;' + message + '</li>');
    };

    // Get the user name and store it to prepend to messages.
    $('#displayname').val(prompt('Enter your name:', ''));

    // Set initial focus to message input box.  
    $('#message').focus();

    // Start the connection.
    $.connection.hub.start().done(function () {
        $('#sendmessage').click(function () {
            // Html encode display name and message. 
            var encodedName = $('<div />').text($('#displayname').val()).html();
            var encodedMsg = $('<div />').text($('#message').val()).html();

            // Call the Send method on the hub. 
            clientServerHub.server.send(encodedName, encodedMsg);

            // Clear text box and reset focus for next comment. 
            $('#message').val('').focus();
        });
    });
});

The DLL's I see references for SignalR are:

1. Microsoft.AspNet.SignalR.Core
2. Microsoft.AspNet.SignalR.Owin
3. Microsoft.AspNet.SignalR.SystemWeb

Any ideas how to get it work? Should I make any change because the scripts are in /Script/lib folder?

NOTE I'm following the instruction found here on how to set up Windsor Castle to make it work with SignalR, and again, seems that the proxy cannot be created and I'm getting the same error:

Cannot read property client of undefined

meaning that the proxy to the hub was not created

This is how I have it in the server

public class IncidentServerHub : Hub

and like this in the client

var clientServerHub = $.connection.incidentServerHub;

Again, I can see the dynamically created file here:

/GdpSoftware.Server.Web/signalr/hubs

So, Why the proxy is not created?

Thanks in advance!!! Guillermo.

Answer 1

I fixed that problem by changing my js code from: var myHub = $.connection.SentimentsHub; to var myHub = $.connection.sentimentsHub;

So if you have some hub with class name TestHub you must use testHub(first letter is lowercase) name in js