Nuget "Manage Packages" dialog. Project names are mixed up - visual-studio-2017

Question

I've got a Visual Studio 2017 solution with several C# class library projects. On disk they take this structure:
MyProduct
MyCompany
MyCompany.ModuleA
MyCompany.ModuleB
MyCompany.ModuleC
But when I look at them in the "Manage NuGet Packages for Solution, the checkboxes show up in the dialog inconsistently. ModuleC appears strangely. Like this:
MyCompany.ModuleA
MyCompany.ModuleB
MyProduct\MyCompany\MyCompany.ModuleC
Also, whenever I build Module C, it keeps creating the following 3 files in its output /obj folder
- MyCompany.ModuleC.csproj.nuget.g.props
- MyCompany.ModuleC.csproj.nuget.g.targets
- project.assets.json
Neither of the other two modules does this.
I'm trying to understand the reason for the inconsistency and to fix it if I can. I have tried combing through the text of the .csproj files for these various projects but I can't spot any differences that might make this happen. And the raw text of the .SLN file project entry all look consistent for each of the 3 modules.
How does NuGet decide what name to put in the Manage Packages for Solution dialog?
Why is NuGet creating those temporary files in the output folder for Module C but not Module's A or B?

Answer 1

How does NuGet decide what name to put in the Manage Packages for Solution dialog?
It is depends on the NuGet manager type, packages.config or PackageReference.
If the project use packages.config, project name will be put in the Manage Packages for Solution dialog. If the project use PackageReference, project file name and relative path will be put in it. That because NuGet will update the project file .csproj when we install the nuget package with PackageReference. So, in the the Manage Packages for Solution dialog, it shows the relative path+project file name, like ClassLibrary1\ClassLibrary1.csproj.
Why is NuGet creating those temporary files in the output folder for
Module C but not Module's A or B?
That because NuGet with PackageReference controls the msbuild items that are generated for these files into the obj\projectname.csproj.nuget.g.props, obj\projectname.csproj.nuget.g.targets and project.assets.json file.
You can unload your project, check if the project file MyCompany.ModuleCuse the PackageReference, like:
<ItemGroup>
<PackageReference Include="Newtonsoft.Json">
<Version>11.0.2</Version>
</PackageReference>
</ItemGroup>
For some more details, please check this official blog: NuGet is now fully integrated into MSBuild.