I'm using alacarte 0.10.2-0ubuntu1; and, I can also duplicate this bug. I've gotten it while trying to change the executable path for an item or when trying to change an item. Attached is my crash log.
** Attachment added: "crashlog" http://librarian.launchpad.net/5570658/_usr_bin_alacarte.1000.crash -- Adding a new menu item Alacarte crash and exit https://launchpad.net/bugs/72298 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs