SignalR与Mono和apache一起运行：HTTP 500错误（在SignalR代码中）

Question

I've been running SignalR on mono with both self-hosting on localhost and on IIS. But self-hosting with mono on a server didn't work yet

The full error I get on the webpage is:

System.InvalidOperationException Operation is not valid due to the current state of the object.

Description:` HTTP 500.Error processing request.
Details: Non-web exception. Exception origin (name of application or object): Microsoft.Owin.Host.SystemWeb.
Exception stack trace:
  at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.BeginEvent (System.Object sender, System.EventArgs e, System.AsyncCallback cb, System.Object extradata) <0x404788f0 + 0x0074b> in <filename unknown>:0 
  at System.Web.HttpApplication+<RunHooks>c__Iterator0.MoveNext () <0x404715e0 + 0x00367> in <filename unknown>:0 
  at System.Web.HttpApplication+<Pipeline>c__Iterator1.MoveNext () <0x40468000 + 0x01a65> in <filename unknown>:0 
  at System.Web.HttpApplication.Tick () <0x40465950 + 0x00057> in <filename unknown>:0 

In the Apache error log:

Cannot access a closed Stream.
  at System.IO.MemoryStream.Write (System.Byte[] buffer, Int32 offset, Int32 count) <0x4006e720 + 0x0008b> in <filename unknown>:0
  at System.IO.BinaryWriter.Write (Int32 value) <0x4006e660 + 0x00087> in <filename unknown>:0
  at Mono.WebServer.ModMonoRequest.IsConnected () <0x40540670 + 0x0001f> in <filename unknown>:0
  at Mono.WebServer.Apache.ModMonoWorker.IsConnected () <0x40540640 + 0x0001b> in <filename unknown>:0
  at Mono.WebServer.ModMonoWorkerRequest.IsClientConnected () <0x405405b0 + 0x00030> in <filename unknown>:0
  at System.Web.HttpResponse.get_IsClientConnected () <0x40540570 + 0x0002a> in <filename unknown>:0
  at System.Web.HttpResponseWrapper.get_IsClientConnected () <0x40540540 + 0x0001b> in <filename unknown>:0
  at Microsoft.Owin.Host.SystemWeb.OwinCallContext.CheckIsClientConnected (System.Object obj) <0x40540490 + 0x00051> in <filename unknown>:0
  at System.Threading.Timer+Scheduler.TimerCB (System.Object o) <0x4053daf0 + 0x001a7> in <filename unknown>:0
  at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () <0x403d3c60 + 0x0002f> in <filename unknown>:0
  at System.Threading.ThreadPoolWorkQueue.Dispatch () <0x403d09b0 + 0x0021a> in <filename unknown>:0
  at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () <0x403d0980 + 0x00010> in <filename unknown>:0

My code looks just fine, my program.cs contains:

class Program
{
     static void Main(string[] args)
    {
        string url = "http://*:80";
        using (Microsoft.Owin.Hosting.WebApp.Start<Startup>(url))
        {

        }
    }
}

I have no idea what to do, should I look to change something in my code to let it work with mono?

Answer 1

I'm going to use SignalR Core, problem solved! :)