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I'm trying to install Sitecore.Kernel version 10.0.0 on Visual Studio 2019 solution running on .net framework 4.8 and I get following error.

Severity    Code    Description Project File    Line    Suppression State
Error       Failed to add reference. The package 'Microsoft.AspNet.WebApi.Client' tried to add a framework reference to 'System.Net.Http' which was not found in the GAC. This is possibly a bug in the package. Please contact the package owners for assistance.
Error HRESULT E_FAIL has been returned from a call to a COM component.

Based on the error it looks like it is an issue with dependency package 'Microsoft.AspNet.WebApi.Client' failing to install 'System.Net.Http'

I tried the following to resolve the issue

  1. Installed 'System.Net.Http' on its own
  2. Tried to install 'Microsoft.AspNet.WebApi.Client', still I get the same error.

Any help around this issue is really appreciated.

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  • Can you try to see if manually adding System.Net.Http to the project references will solve the issue? You need to also verify the .net framework version in your project settings.
    – Cristi Vulturar
    Feb 26, 2021 at 6:51
  • Are you installing without dependencies? In my opinion, that is the best way..
    – Gatogordo
    Feb 26, 2021 at 8:14
  • No, I tried that.
    – SitecorePro
    Feb 26, 2021 at 14:12

1 Answer 1

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I figured out what the issue was, its user error :(

When I created the ASP.Net Web Application Project, I missed selecting MVC as a option.

enter image description here

Once I removed the project and recreated it with MVC as a option, it allowed me to add Sitecore.Kernel as reference without any issues.

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