System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' which has a higher version than referenced assembly 'System.Net.Http.Formatting' with identity 'System.Net.Http.Formatting, Version=4.0.0.0

CS1705 Assembly 'System.Web.Http' with identity 'System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' uses 

'System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' which has a higher version than referenced 

assembly 'System.Net.Http.Formatting' with identity 'System.Net.Http.Formatting, Version=4.0.0.0, Culture=neutral, 

PublicKeyToken=31bf3856ad364e35'

Solution:

I got this following error I removed the old version of System.Net.Http.Formatting version 4.0.0.0 and referenced  Version=5.2.3.0. This reference 

resolved by problem.