[Xamarin.UITest version 2.2.4, but it happens on previous version]
I came into this, when I tried to install Xamarin.UITest as Nuget package in an Android project.
When I try to compile the project I have the super-discussed error:
Exception while loading assemblies: System.IO.FileNotFoundException: Could not load assembly 'System.Drawing, Version=188.8.131.52,
If I remove the package this disappears.