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visual-studio-2013signalrowinultidev

SignalR in OWIN hosted site?

I get this error when trying to run my web site in UltiDev (version 2.0.20) or in a CassiniDev4 server. 

This operation requires IIS integrated pipeline mode.
at System.Web.HttpResponse.get_Headers() 
at Microsoft.Owin.Host.SystemWeb.CallHeaders.AspNetResponseHeaders..ctor(HttpResponseBase response) 
at Microsoft.Owin.Host.SystemWeb.OwinCallContext.CreateEnvironment() 
at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.GetInitialEnvironment(HttpApplication application) 
at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.PrepareInitialContext(HttpApplication application) 
at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.BeginEvent(Object sender, EventArgs e, AsyncCallback cb, Object extradata) 
at System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() 
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Here is similar related (unsolved) question: Testing SignalR App in IIS Express.

Is there any way to determine which headers are involved in this problem?

Solution

  • With ASP.NET Core, this is no longer an issue as I don't need to use UltiDev or CassiniDev4.