Tobii dll works when “Any CPU” && “Prefer 32-bit” was enabled,
but it doesn’t when 64 bit config is selected.
1) uninstall Tobii.Interaction package
2) set project config as 64 bit target.
2) install again Tobii.Interaction package.
But I find the same load error with BadImageFormatException message.
If Tobii.interaction NuGet package should support 64 bit, this looks a bug of package creation.