Could not load file or assembly 'WebGrease' or one of its dependencies

Question

When I run my MVC4 Web application it gives the following error:

Could not load file or assembly \'WebGrease\' or one of its dependencies. The located assemb         


        

Answer 1

Just delete the webgrease from packages folder or uninstall it using package console and then run Update-Package -Reinstall Microsoft.AspNet.Web.Optimization in package cone