Answer / Amit Kumar Anand

To return a 404 error using HttpError, you should throw an exception of type `HttpResponseException` in your controller method.nn```csharpnpublic IHttpActionResult Get(int id) {n if (!ModelState.IsValid)n return BadRequest(ModelState);n // Your code to get the resource with given IDn if (resource == null) {n throw new HttpResponseException(Request.CreateErrorResponse(HttpStatusCode.NotFound, "Resource not found"));n }n return Ok(resource);n}n```

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