thanks for your answer first, however i have do as the method described on http://orgmode.org/manual/Feedback.html#Feedback,Hi Ryu, ryu <liuyouchao111@gmail.com> writes:when i publish a project, it will prompt a error message " (void-variable org-export-html-special-string-regexps)". anyone who can give me an advice ?You must have copied someone's configuration -- please double-check there is no such variable in your .emacs.el (or other configuration files.) HTH,