This is due to deprecated gdesklets being included in the gdesklets-data package.
StickyNotes 0.1 does not work with Gdesklets-0.35.3. See bug #52683. -- An error which shouldn't be displayed (anymore) https://launchpad.net/bugs/29035 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
