Could not load file or assembly System.Net.Http, Version=4.0.0.0 in .Net

Dung Do Tien May 31 2022 586

Hello guys. I have a project with C# Asp.Net Framework version 4.7.2. I used Github to help manage source code and my project still works well for me. And today I created a branch that bases on from master branch. But when running the project I got an error Could not load file or assembly 'System.Net.Http, Version=4.0.0.0, Culture=neutral,  PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.

Could not load file or assembly 'System.Net.Http, 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)
  at BookManager.modENS.GetENSResolver_BookAddress(String nameHash) in C:\Project\BookManager\BookManager.IO\Source_SecondTask\BookManager\common\BudENS.cs:line 59
  at BookManager.enslookup_search.LoadPageForAddress(String address) in C:\Project\BookManager\BookManager.IO\Source_SecondTask\BookManager\enslookup-search.aspx.cs:line 120

My project installed  System.Net.Http version 4.2.0.0, I search all the projects but did not find any package with version 4.0.0.0.

Here is a bit of  my web.config  file:

<runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.1.1.2" newVersion="4.1.1.2" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Interactive.Async" publicKeyToken="94bc3704cddfc263" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.0.3000.0" newVersion="3.0.3000.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Google.Apis" publicKeyToken="4b01fa6e34db77ab" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-1.38.0.0" newVersion="1.38.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Google.Apis.Auth" publicKeyToken="4b01fa6e34db77ab" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-1.38.0.0" newVersion="1.38.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>

I used VS 2022 and windows 11.

I tried downgrading to version 4.0.0.0 but it still didn't work for me.

Please support me if you know any solution.

Have 1 answer(s) found.
  • T

    Trần quốc cường May 31 2022

    I really got the same error as you. After trying many solutions that did not work, I found a simple way, like this:

    Step 1: Open your web.config file and delete this line:

    <dependentAssembly>
    <assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-4.1.1.2" newVersion="4.1.1.2" />
</dependentAssembly>

    Step 2: Clear, rebuild project and rerun project. Your issues will be solved.

    It's worked for me and hopefully also worked for you.

Related Q&A May You Like

  1. The following sections have been defined but have not been rendered by the page
  2. Fix error: failed to push some refs to repository in Git
  3. Fatal: unable to access: SSL certificate problem: certificate has expired
  4. Error response from daemon unauthorized: HTTP Basic: Access denied CICD GitLab
  5. Error: The json property name for collides with another property in .Net 6
  6. Error: Sequence contains no matching element in C# Asp.Net
  7. Data is Null. This method or property cannot be called on Null values in Asp.Net and MySql
  8. Error: SSL Connection error in MySQL using C# Asp.Net 6
  9. Unable to make the session state request to the session state server in .Net
  10. Github error: src refspec master does not match any
  11. Unable to create an object of type 'DbContext' in EF Core
  12. GitHub remote: Support for password authentication was removed on August 13, 2021
  13. Error remote: Repository not found on GitHub when clone
  14. The SDK 'Microsoft.NET.Sdk.Web' specified could not be found
  15. Unable to prepare context: unable to evaluate symlinks in Dockerfile in Asp.net Core
Leave An Answer
* NOTE: You need Login before leave an answer

* Type maximum 2000 characters.

* All comments have to wait approved before display.

* Please polite comment and respect questions and answers of others.

Most Quizs Popular

Start Test

Javascript - Functions
Start Test

Asp.Net Core - Exam test 01
Start Test

Asp.Net Core - Exam test 02
Start Test

C# - Level Beginner

Popular Tips

This site uses cookies so that we can remember you and understand how you interact with our website. This allows us to improve and customize your browsing experience. See our Cookies Policy.
X Close