HttpContext.Current not Resolving in MVC 4 Project

Question

I am wanting to use ImageResizer (from ImageResizing dot net). I installed ImageResizer for MVC via NuGet. But when I go to use the following code from the example:

//Loop through each uploaded file foreach (string fileKey in HttpContext.Current.Request.Files.Keys) {     HttpPostedFile file = HttpContext.Current.Request.Files[fileKey];     if (file.ContentLength <= 0) continue; //Skip unused file controls.      //The resizing settings can specify any of 30 commands.. See http://imageresizing.net for details.     //Destination paths can have variables like <guid> and <ext>, or      //even a santizied version of the original filename, like <filename:A-Za-z0-9>     ImageResizer.ImageJob i = new ImageResizer.ImageJob(file, "~/uploads/<guid>.<ext>", new ImageResizer.ResizeSettings(                             "width=2000;height=2000;format=jpg;mode=max"));     i.CreateParentDirectory = true; //Auto-create the uploads directory.     i.Build(); } 

The "HttpContext.Current.Request.Files.Keys" in the foreach is not resolving? I have my usings correct and Visual Studio offers no "Resolve" options.

Answer 1

Try prefixing it with System.Web.

If I try System.Web.HttpContext.Current, then Current is there, but if I try HttpContext.Current, then it doesn't recognize 'Current'. I do have System.Web in my using statements, but I still seem to be required to specify it in order to get access to 'Current'.

@Chris' answer points and explains the underlying reason.