In the version Version 11.54.82 / Build 63748 there is a new warning,
Unused Resource, Resource 'Resource' is never used. Consider deleting it.
and the warning points to Resources->MyResources.zip.
This resource is part of a mobile application, and the zip file contains all the icons (logos) used by the app. I recommend removing this warning, as an inexperienced developer might mistakenly delete it, causing future compilations to generate the application without its logos.