WinInsider.HttpHosting.Owin (nuget): Owin Hosting with MEF project compiled for .NET Standard  HttpListener that comes with Owin can not be used in .NET Standard scenarios as is bases on Windows specific implementation, thus set ServerFactory as below...  var options = new StartOptions("http://localhost:8080/"); options. ServerFactory = "WinInsider.Owin.Host.SocketListener"; WebApp.Start<Startup>(options);
Keywords: WebAPI|REST|HTTP|MEF|OWIN