HttpPost method can't be reached, in ASP.Net MVC Project

Question

Abstract:
I have an Asp.net MVC project, and a console windows app.
I try to have the console app to post a file to the web project through a [HttpPost] method in a controller.
Both my projects are running locally, each one in its own visual studio instance.
My problem is that my [httppost] method is never called.

Details:
Here is the code in the web project

public class DevController : Controller  
{  
    [HttpPost]  
    public ActionResult UploadStuff(HttpPostedFileBase file)  
    {
        System.Diagnostics.Debugger.Break(); //This breakpoint is never reached
        return View();
    }
}

Here is the code in the console app:

static public async void UploadStuff(Stream streamToUploadToWebProject)
{
    var content = new MultipartFormDataContent();
    content.Add(new StreamContent(streamToUploadToWebProject), "WhateverName");
    var httpClient = new HttpClient();
    string url = @"http://localhost:12345/dev/UploadStuff";
    var response = await httpClient.PostAsync(url, content);
}

Notes:
1) http://localhost:12345/: This is the url that is displayed in browser when I run my web project.
2) The file that is sent is an unstructured blob.
3) Most related posts I have found are about uploading a json file (like this post), or are about posting a file from a web page (in which case there is a also "Get" method returning a view containing a "upload" button); Both cases are not same as mine.
4) [Edit] HttpClient.PostAsync returns a "404" error.

My Question:
What do I do wrong; how should I write the [HttpPost] method, so that it gets called?

Answer 1

In your controller try to use [FromBody] attribute before the parameter.

[HttpPost]  
public ActionResult UploadStuff([FromBody]HttpPostedFileBase file)