Your bug report #17490: 24.3.91; describe-function on some eieio class give (wrong-type-argument char-or-string-p nil) which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 17490@debbugs.gnu.org. -- 17490: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17490 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems