Could not load file or assembly System.Web.WebPages.Razor, , Version=3.0.0.0 or one of its dependencies

Question

I am using MVC 5, WCF and Unity framework in my application.

I am getting below error when I run WCF service:

Server Error in \'/\' Application.

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Answer 1

I had same issue where WCF was showing error of unrelated MVC assembly (I have multiple MVC projects in solution which are using System.Web.WebPages.Razor, Version=3.0.0.0). I installed Microsoft.AspNet.WebPages package in the WCF project , ran WCF proj and It worked. After that I had uninstalled all Microsoft.AspNet.WebPages related packages. It worked fine.