This XML file does not appear to have any style information associated with it. The document tree is shown below. <Error> <Message>An error has occurred.</Message> <ExceptionMessage> Multiple types were found that match the controller named 'Test'. This can happen if the route that services this request ('api/v1/hello') found multiple controller…

gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Http;

namespace MvcApplication1
{
    public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Controller: MvcApplication1.Controllers.V1.Test
            config.Routes.MapHttpRoute(
               name: "HelloV1",
               routeTemplate: "api/v1/hello",
               defaults: new { id = RouteParameter.Optional, controller = "Test", action = "Hello" }
           );

            // Controller: MvcApplication1.Controllers.V2.Test
            config.Routes.MapHttpRoute(
            name: "HelloV2",
            routeTemplate: "api/v2/hello_v2",
            defaults: new { id = RouteParameter.Optional, controller = "Test", action = "Hello_V2" }
            );

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );
        }
    }
}