what can i do about this Visual Studio 2017rc error exception?

I am having problems running my. the project setup is asp.NET core web application(.Net Framework). I don't seem to get any Build error. the project don't just run

System.IO.FileLoadException: 'Could not load file or assembly 'Microsoft.Win32.Primitives, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)'