Microsoft.Extensions.Http is not being copied

[santo998]

Description

I have a DLL which uses Microsoft.Extensions.Http.

Then, I have a project which references my DLL.

When I run my project, it throws the exception:

System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Extensions.Http, Version=9.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The system cannot find the file specified.
File name: 'Microsoft.Extensions.Http, Version=9.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'
...

If I reference Microsoft.Extensions.Http nuget from my project, it doesn't.

But, I shouldn't have to, because it doesn't reference it directly.

I think making the nuget package being transitive or copying the Microsoft.Extensions.Http DLL in some way via nuget would resolve this, so that's why I'm creating this issue.

Reproduction Steps

Have a DLL which references Microsoft.Extensions.Http, implement some method which uses that nuget package and call that method from another project.

Expected behavior

The project runs

Actual behavior

Exception thrown

Regression?

No response

Known Workarounds

Including direct reference to the nuget package from the project

Configuration

I'm running .NET 8 and referencing Microsoft.Extensions.Http 9.0.0

Other information

No response

[RussKie]

Microsoft.Extensions.Http lives in https://github.com/dotnet/runtime/tree/main/src/libraries/Microsoft.Extensions.Http

Just because one assembly references another assembly it doesn't mean the second assembly will be automagically included in the dependency graph. The NuGet package that contains the first assembly must declare a dependency on Microsoft.Extensions.Http, only then it will get included.