Any solution for the Exception: The controller for path '/null' was not found or does not implement IController.

Question

User-467411554 posted

I'v been monitoring my mvc 5 web application that is deployed on azure using application insights and once in a while I get this Exception: 

System.Web.HttpException:
   at System.Web.Mvc.DefaultControllerFactory.GetControllerInstance (System.Web.Mvc, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
   at System.Web.Mvc.DefaultControllerFactory.CreateController (System.Web.Mvc, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
   at System.Web.Mvc.MvcHandler.ProcessRequestInit (System.Web.Mvc, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
   at System.Web.Mvc.MvcHandler.BeginProcessRequest (System.Web.Mvc, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
   at System.Web.HttpApplication+CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute (System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Web.HttpApplication.ExecuteStepImpl (System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Web.HttpApplication.ExecuteStep (System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)

When I check the telemetry before this request, I see

1. GET Home/Index

2. GET null/Index

3. The controller for path '/null' was not found or does not implement IController.

I checked my Index.cshtml for any possible erroneous code and could only narrow down to this piece of line:

@Html.Action("TestMethod", "Home", Model)

So, is there a way to avoid this exception?
 

Answer 1

User-2054057000 posted

What is the HTML generate for this code on the view:

@Html.Action("TestMethod", "Home", Model)