No conversion available between HelloWorldComponent and System.Func`2[System.Collections.Generic.IDictionary`2 // Parameter name: signature
问题 I am working through Scott Allen's MVC 5 Fundamentals course on Pluralsight I get an error at "using (WebApp.Start(uri)) " in the code below. The error is An unhandled exception of type 'System.ArgumentException' occurred in Microsoft.Owin.dll System.ArgumentException was unhandled HResult=-2147024809 Message=No conversion available between ConsoleApplication1.HelloWorldComponent and System.Func`2[System.Collections.Generic.IDictionary`2[System.String,System.Object],System.Threading.Tasks