The server factory could not be located for the given input: Microsoft.Owin.Host.HttpListener
c#, owin, signalr
Solution
The `Microsoft.Owin.Host.HttpListener` assembly is a runtime reference in `WebApp.Start`. You need to include it in the project's references for it to be available for loading. Check the bin\Debug (etc) directory to make sure it's included. May as well add it as a nuget dependency as well.
Problem
I have implemente signalR in window service. ``` private IDisposable SignalR { get; set; } public void Configuration(IAppBuilder app) { var hubconfig=new Microsoft.AspNet.SignalR.HubConfiguration(); hubconfig.EnableJSONP = true; app.UseCors(CorsOptions.AllowAll); app.MapSignalR(hubconfig); } private void StartSignalRServer(StringBuilder sbLog) { try { this.SignalR = WebApp.Start(ServerURI); //This throws exception //this.SignalR= WebApp.Start<Startup>(ServerURI); sbLog.Append(string.Format("{0}--------SignalR Server Started------",Environment.NewLine)); } catch (Exception ex) { sbLog.Append(string.Format("{0}Exception in StartSignalRServer=>{1}", Environment.NewLine,ex.Message)); } } ``` Exception:The server factory could not be located for the given input: Microsoft.Owin.Host.HttpListener