Richard Stanton <stan...@haas.berkeley.edu> wrote: > I just updated org-mode to version 7.8.09 (release_7.8.09.199.g5e4cff.dirty= > ), and now get the following error when I try to open any .org file: > > Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil) > org-babel-header-arg-expand() > run-hook-with-args-until-success(org-babel-header-arg-expand) > org-cycle((4)) > org-set-startup-visibility() > org-mode() > set-auto-mode-0(org-mode nil) > set-auto-mode() > normal-mode(t) > after-find-file(nil t) > find-file-noselect-1(#<buffer work.org> "c:/Dropbox/org/work.org" nil nil= > "c:/Dropbox/org/work.org" ((16640 12 . 1731) (37630 . 48608))) > find-file-noselect("c:/Dropbox/org/work.org" nil nil nil) > find-file("c:/Dropbox/org/work.org") > steve-ido-choose-from-recentf() > call-interactively(steve-ido-choose-from-recentf nil nil) >
There's a bug in org-babel-header-arg-expand. As a temporary workaround, edit lisp/ob.el and comment out line 715: ;(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand) Max Mikhanosha suggested a more-or-less equivalent workaround adding (remove-hook 'org-tab-first-hook 'org-babel-header-arg-expand) to his org-mode initialization. However, you have to put it in the right place: it needs to be added after ob.el is loaded (which may or may not be obvious) and before anything else happens that will trigger the error. In my case at least, that proved a bit tricky: I was calling org-agenda-to-appt in my init file and I had to put Max's workaround right before that. The commenting out method might be easier, but ymmv. Nick PS. The problem in org-babel-header-arg is the (= (char-before) 58) comparison: when the file is opened, we are at the beginning of the buffer and (char-before) returns nil, which is not a number.