HttpPostedFileBase missing reference

Question

I'm getting an error on HttpPostedFileBase:

The type or namespace name 'HttpPostedFileBase'could not be found(are you missing a using directive or an assembly reference?)

I have already tried to use using System.Web but didn't work at all.

Edit #1

public IActionResult Upload(HttpPostedFileBase file)
    {

        if (file.contentlength > 0)
        {
            var filename = Path.GetFileName(file.filename);
            var path = Path.Combine(Server.mappath("~/app_data/uploads"), filename);
            file.saveas(path);
        }

        return RedirectToAction("index");
    }

I dont acctually have a reference folder No references folder

Answer 1

You can't mix and match tutorials and framework versions. You're on ASP.NET Core 2.0.8, which doesn't contain HttpPostedFileBase.

The ASP.NET Core counterpart of HttpPostedFileBase is IFormFile.