C# – Could not load file or assembly ‘System.Web.Helpers, error on IIS 8

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I have a MVC4 web application that works fine on Visual Studio 2012, using the local IIS Express Server. When I publish the application to an IIS 8 web server running on Windows 2012, the initial login page displays correctly. However, using remote debugging, I see that when I check the credentials using the following line:

if (ModelState.IsValid && WebSecurity.Login(model.UserName, model.Password, persistCookie: model.RememberMe))

I get the error shown in the figure below:

_{(source: usf.edu)}

Best Answer

Solution - Copy reference to local

Right click on reference System.Web.Helpers and select Properties
Change Copy Local to true.
Build Solution

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Best Answer

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