Apply system theme again if you're on another theme, restart your phone, and then try again to apply Pink JellyBean theme, it should be ok.. It happens sometimes, don't worry about this message..
Nice looking theme, not my kind of colour, but it could make me like it a little more, from what the screenshots show.. good work
Phone: Galaxy Nexus
Rom: [JB 4.2.2] XenonHD Stable-10.0
icon sets and other random stuff..(mostly UCCW skins)
Smaller icon sets can be found if you browse my last posts..