>>>>>I commented out ErrorView, WarningView, etc. methods and got it to run.
>>>>
>>>>Hardly a fix :-}
>>>>
>>>
>>>Agree. The consultants suggests to just comment that particular line instead
>>>
>>>routes.MapMvcAttributeRoutes();
>>
>>Are you using routing attributes in your controllers? You didn't show any but if there are than you need that line.
>>
>I believe we do use the attributes, e.g.
>
>

>[Authentication(Rights = "A_ACCOUNTS")] 
>	[RoutePrefix("api/accounts")]
>    public class AccountsApiController : BaseApiController

>
>and then in the methods:
>
>

>[Route("")]
>        public IHttpActionResult GetAccounts(
>		[FromUri]AccountSearchViewModel searchViewModel,
>		[ModelBinder(typeof(SearchRequestModelBinder))]SearchRequest searchRequest)
>        {
>            SetUpSearch(searchRequest, searchViewModel);
>            return Ok(searchViewModel.Result);
>        }

>
>and sometimes using Authentication for methods.

Authentication attribute is irrelevant. It's only looking at {Route] attributes.

IAC, if the method is working (as per previous post) then the route map is probable being created OK and there's no need to remove the MapMvcAtttributeRoutes() call ?