SignalR - 找不到类型或命名空间名称 'Hub'

Question

我是 SignalR 库的新手。我在 VS2010 中创建了一个新的 Web 项目，然后在包管理器控制台中我执行了以下命令来设置 SignalR 包。

PM> Install-Package Microsoft.Aspnet.SignalR -pre

So it downloaded all the necessary files into the application.
----------
Successfully installed 'Microsoft.AspNet.SignalR 1.0.0-rc2'.
Successfully added 'jQuery 1.6.4' to demo.
Successfully added 'Microsoft.AspNet.SignalR.JS 1.0.0-rc2' to demo.
Successfully added 'Newtonsoft.Json 4.5.11' to demo.
Successfully added 'Microsoft.AspNet.SignalR.Core 1.0.0-rc2' to demo.
Successfully added 'Owin 1.0' to demo.
Successfully added 'Microsoft.AspNet.SignalR.Owin 1.0.0-rc2' to demo.
Successfully added 'Microsoft.Web.Infrastructure 1.0.0.0' to demo.
Successfully added 'Microsoft.Owin.Host.SystemWeb 1.0.0-rc2' to demo.
Successfully added 'Microsoft.AspNet.SignalR.SystemWeb 1.0.0-rc2' to demo.
Successfully added 'Microsoft.AspNet.SignalR 1.0.0-rc2' to demo.
----------

现在我添加了一个名为 LetsHub.cs 的新类文件。

在那个文件中我写了下面的代码，

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.AspNet.SignalR.Hubs;

namespace demo.Hubs
{
  [HubName("chatHub")]
  public class LetsChat : Hub
  {
      public void SendMsg(string Message)
      {
         Clients.All.addMessage(Message);
      }
  }
}

我无法继承此 Hub 类。

找不到类型或命名空间名称 Hub(您是否缺少 using 指令或 assemblr 引用？)。

我在 VS 2012 上也面临同样的问题。

Answer 1

Hub 类在 RC2 中被移动到不同的命名空间。请更改为 Microsoft.AspNet.SignalR