Http Assembly version error

Question

User-1399352090 posted

Hello i'm getting assembly error for System.Web.Http

Severity Code Description Project File Line Suppression State
Error CS1705 Assembly 'System.Web.Http' with identity 'System.Web.Http, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' uses 'System.Net.Http.Formatting, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' which has a higher version than referenced assembly 'System.Net.Http.Formatting' with identity 'System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' ApiServices C:\xxx\xxx\ApiServices\CSC 1 Active

Please help.

Appreciate for Quick and Best Response

Answer 1

User61956409 posted

Hi Yasin,

Please try to right click your project and select “Manage NuGet Packages...” option, and find the package which cause issues and try to update it.

With Regards,

Fei Han

Answer 2

User1703056819 posted

I received this same error after updating Nugets from 5.2.3 to 5.2.4

I had to downgrade all of the Nuget. 

<package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net45" />

<package id="Microsoft.AspNet.WebApi" version="5.2.3" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net45" />

<package id="System.Net.Http.Formatting.Extension" version="5.2.3.0" targetFramework="net45" />