HelloWorld Cs sample doesn't build in VS 2019 Community

[microsoft]

HelloWorld Cs sample doesn't build in VS 2019 Community

[gregg-miskelly]

That shouldn't be needed, as the project has a PackageReference to Microsoft.VisualStudio.Debugger.Engine. If you crank up the build verbosity, can you see the package being checked?

    <PackageReference Include="Microsoft.VisualStudio.Debugger.Engine" Version="$(ConcordPackageVersion)">
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>

[WheretIB]

I see there's a reference in the csproj file, but it is not displayed in Solution explorer.

Solution Explorer

I can't see any mention of that package in Detailed MSBuild log file: Build Log

[WheretIB]

If I open NuGet package manager, I can see two packages listed and installed but the project still does not build.
NuGet Package Manager

And 'Restore NuGet Packages' menu option doesn't help.

[WheretIB]

I wanted to reinstall the package, and as soon as I removed the Debugger package, the VSDConfigTool got restored.
NuGet Package Manager 2

[WheretIB]

Looks like I was missing these two checkboxes in Visual Studio settings:
NuGet Settings

After turning them both on, packages are restored in a clean git clone and project builds without an error.