How to return result from ihttpactionresult and createdatroute

IHttpActionResult and CreatedAtRoute

The resource cannot be found

<pre> // GET: Test
        object json;
        public IHttpActionResult Index()
        {
            json = new
            {
                Name = "hi"
            };
            return CreatedAtRoute("DefaultApi", new { id = 1 }, json);
        }