I am trying to create a custom controller for a taxonomy keywords navigation module in DXA1.4 .Net; however, I always hit the same error:

The controller for path '/taxonomy/test' was not found or does not implement IController.

I have declared my Module:Controller in the Component Template Component Template

And this relates to the Controller in my project, which I deploy to my Site for testing:

Solution Screenshot

I deploy the Controllers to the Site in a DLL by using the xcopy function, but I am sure this is not the issue here.

My ViewModel is registered as follows:

ViewModel Registration

And my Controller is shown here:

enter image description here

Please let me know if you need more info...

Thank you for taking the time to look.

Add on information:

When I run the site in Visual Studio we get the following break at the Main view (detailed in my Component Template MetaData) at the Html.DxaEntities() method.

enter image description here

  • Do you have a route to the NavigationTaxonomyController defined in Global.asax.cs ? Commented Jul 28, 2016 at 20:59
  • Hi Rick, thank you for responding. No I didn't and I am not sure how to do this as I do not see a Global.asax.cs in the DXA project. Do I need to create the class and do you have an example of the route please? Commented Jul 29, 2016 at 8:28
  • Is the update of the Global.asax.cs file something new? We have in the training where we create a custom controller in our new module and there is no need for us to update the Global.asax.cs for this to work.
    – TridionNut
    Commented Jul 29, 2016 at 15:26
  • Indeed, Entity Controllers don't have to be registered explicitly in Global.asax.cs; that's taken care of by BaseAreaRegistration, I was just wondering where the URL path came from (since it doesn't seem to match the name of a controller nor action). Commented Jul 29, 2016 at 15:41

1 Answer 1


I guess that (part of) the problem is that your controller classes are not explicitly declared as public (and the default visibility for classes is internal in C#).

I also don't understand why the URL path in the error message is /taxonomy/test; the (virtual) URL path for Entity Controllers registered in BaseAreaRegistration is in format /{controller}/{action}, so it seems that is trying to invoke the test action/method on the taxonomy controller (TaxonomyController) for some reason.

  • I just noticed that the classes were not public. I have made them public now and rebuilt the solution and now i am getting the following Error: 2016-07-29 17:15:27,041 [8] ERROR - Object reference not set to an instance of an object. System.NullReferenceException: Object reference not set to an instance of an object. at Taxonomy.Providers.KeywordProvider.RetrieveKeywords(String categoryId) at Taxonomy.Controllers.NavigationTaxonomyController.EnrichModel(ViewModel model)
    – TridionNut
    Commented Jul 29, 2016 at 17:18
  • So apparently your NavigationTaxonomyController now gets invoked successfully, but there is a problem in its implementation. Sounds like the original problem has been solved. Commented Jul 29, 2016 at 17:21
  • The shifting of the classes to public has allowed the controllers to get invoked, The error message I fixed, it turns out the schema fields it was looking for the casing was wrong. It seems to be working now. Thanks!
    – TridionNut
    Commented Jul 29, 2016 at 17:47

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