Signalr 在Windows服务中使用自主机托管信号器

我是新来的，需要帮助

我在一个库中编写了所有信号器代码[我的集线器将自托管]。然后，我从windows服务应用程序中引用了该库，在windows服务应用程序中安装了包“Microsoft.Owin.Host.HttpListener”，并尝试执行它。 我得到一个有线例外：

序列不包含匹配元素

我在winForm应用程序中测试了我的库，它工作正常

我不知道我为什么会这样

更新：代码示例： 在我的图书馆“myLib”

私有可识别主机

    private bool Start()
            {
                try
                            {
                               string url = "http://localhost:5000/";
                   host = SelfHost.Host(url);
                            }
                            catch (Exception ex)
                            {
                               log.WriteLine("************HOSTING FAILED                  ********************************* ex.ToString():"+ ex.ToString()+
                               " Ex.StackTrace: "+ex.StackTrace +" EX.Message: " + ex.Message + "***************"); 
                           }    
            }

private bool Stop()
        {
            if (host != null)
            {
                host.Dispose();
            }
        }

---

我的自我主持课程：

class SelfHost
    {
        public static IDisposable Host(string url)
        {
            return WebApplication.Start<SelfHost>(url);
        }

        public void Configuration(IAppBuilder app)
        {
            // Turn cross domain on 
            var config = new HubConfiguration { EnableCrossDomain = true };

            // This will map out to http://localhost:8080/signalr by default
            app.MapHubs(config);
        }

    }

我实现了windows服务的OnStart（），它启动了一个线程，该线程从myLib调用Start（）-函数：

protected override void OnStart(string[] args)
    {
      Thread t = new Thread(new ThreadStart(this.StartServiceThread));
      t.CurrentCulture = new System.Globalization.CultureInfo("en-US");
      t.Start();
    }
 private void StartServiceThread()
    {
     l.Start();
    }

输出[Ex详细信息]

************HOSTING FAILED ********************************* 
ex.ToString():
    System.InvalidOperationException: Sequence contains no matching element
       at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
       at Microsoft.Owin.Hosting.ServerFactory.DefaultServerFactoryLoader.Load(String serverName)
       at Microsoft.Owin.Hosting.KatanaEngine.ResolveServerFactory(StartContext context)
       at Microsoft.Owin.Hosting.KatanaEngine.Start(StartContext context)
       at Microsoft.Owin.Hosting.Starter.DirectHostingStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.KatanaStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](IServiceProvider services, StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](String url)
       at SelfHost.Host(String url) in SelfHost.cs:line 29
       at myLib.Start() in myLib.cs:line 381

 Ex.StackTrace:
    at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
       at Microsoft.Owin.Hosting.ServerFactory.DefaultServerFactoryLoader.Load(String serverName)
       at Microsoft.Owin.Hosting.KatanaEngine.ResolveServerFactory(StartContext context)
       at Microsoft.Owin.Hosting.KatanaEngine.Start(StartContext context)
       at Microsoft.Owin.Hosting.Starter.DirectHostingStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.KatanaStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](IServiceProvider services, StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](String url)
       at SelfHost.Host(String url) in SelfHost.cs:line 29
       at myLib.Start() in myLib.cs:line 381 
EX.Message: Sequence contains no matching element***************

---

提前谢谢

我发现了问题所在。我在两个月前编写了myLib代码，当时正在使用我在两个月前编写的winForms应用程序进行测试

但是昨天我在我的windows服务应用程序中安装了新的Owin包，并尝试使用我以前编写的库，因此我得到了错误

---

问题是myLib（Owin.Hosting的旧版本）中的NuGetPackage与12天前发布的新包版本不兼容。新更改不支持WebApplication（旧版本）。它被称为now WebApp。

请显示一些示例代码，并提供异常的完整详细信息，包括stacktrace（.ToString（）It）。我做到了，请查看我的更新这里有一个相关链接，其他人可以通过Windows服务尝试host Signaler：

************HOSTING FAILED ********************************* 
ex.ToString():
    System.InvalidOperationException: Sequence contains no matching element
       at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
       at Microsoft.Owin.Hosting.ServerFactory.DefaultServerFactoryLoader.Load(String serverName)
       at Microsoft.Owin.Hosting.KatanaEngine.ResolveServerFactory(StartContext context)
       at Microsoft.Owin.Hosting.KatanaEngine.Start(StartContext context)
       at Microsoft.Owin.Hosting.Starter.DirectHostingStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.KatanaStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](IServiceProvider services, StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](String url)
       at SelfHost.Host(String url) in SelfHost.cs:line 29
       at myLib.Start() in myLib.cs:line 381

 Ex.StackTrace:
    at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
       at Microsoft.Owin.Hosting.ServerFactory.DefaultServerFactoryLoader.Load(String serverName)
       at Microsoft.Owin.Hosting.KatanaEngine.ResolveServerFactory(StartContext context)
       at Microsoft.Owin.Hosting.KatanaEngine.Start(StartContext context)
       at Microsoft.Owin.Hosting.Starter.DirectHostingStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.KatanaStarter.Start(StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](IServiceProvider services, StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](StartOptions options)
       at Microsoft.Owin.Hosting.WebApplication.Start[TStartup](String url)
       at SelfHost.Host(String url) in SelfHost.cs:line 29
       at myLib.Start() in myLib.cs:line 381 
EX.Message: Sequence contains no matching element***************