Could not load file or assembly 'WebGrease, Version=1.5.1.25624, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies

Question

I have an MVC4 Web API project. While running the service project I am getting an error

Could not load file or assembly \'WebGrease, Version=1.5.1.25624,

Answer 1

The other answers did not resolve this for me. We are adding a newer MVC 5 API project and it wasn't playing nice with the older MVC 2 API's. After running package updates I was getting the mentioned error. The resolution for me was to remove the WebGrease references added by NuGet in the web.config's of the offending projects.

To Resolve: Open the web.config of the project(s) throwing the exception and delete or comment out the dependency added for WebGrease.