"The located assembly's manifest definition does not match the assembly reference"
You may check "assembly versions" in Tools > Nuget Package Manager > Manage NuGet Packages for Solution (VS2015). Check versions of assemblies used in your projects in solution & use single version.
I had the same error regarding the version of System.Web.Mvc.
In my case, there was no NuGet package inconsistency between projects, but there was a web.config file in my Views folder with the following line:
<host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />Changing this version number to match the currently installed NuGet package fixed the issue.