Confused about Xamarin Form Labs

Hi.

I am trying to get started with Xamarin Form Labs, with my first goal to get the Device resolution, size and dpi.
I added the Forms Labs Core package to my Android project, as well as the IoC package, using the package manager.

However, the compiler still complains that
" The type or namespace name `XLabs' could not be found. Are you missing an assembly reference? (CS0246)"

I saw on the samples project that the actual IoC DLL is in the references folder. But I want to refrain from manually adding DLLs that can soon get stale, after all, the whole point is to let the package manager pick up updates, right?

What am I missing here?

Thanks,

Erez