Could not load file or assembly System.Web.Mvc or one of its dependencies
#Error Description
This error can occur after an MVC version has been updated and the System.Web.Mvc assembly version is changed as a result. Thus, an MVC project can’t locate the System.Web.Mvc assembly that it references.
#Solution
Modify the web.config file to redirect the System.Web.Mvc assembly to the version installed on your machine.
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
</dependentAssembly>
...
</assemblyBinding>