Hi Ista i did do a byte compiling but that didnt help. i got this message when i did byte compile Compiling no file at Sat Aug 8 07:06:30 2015 Leaving directory `/home/zeltak/.emacs.d/elpa/ace-isearch-20150807.1803' Compiling file /home/zeltak/.emacs.d/elpa/org-20150805/ob-R.el at Sat Aug 8 07:06:55 2015 Entering directory `/home/zeltak/.emacs.d/elpa/org-20150805/' ob-R.el:72:11:Warning: reference to free variable `org-babel-safe-header-args' In end of data: ob-R.el:470:1:Warning: the following functions are not known to be defined: org-babel-header-args-safe-fn, org-babel-graphical-output-file best Z On Fri, Aug 7, 2015 at 10:01 PM, Ista Zahn wrote: > We discussed this already in another thread[0]. The upshot was run > "M-x byte-compile-file" on ob-R.el. > > Best, > Ista > [0] https://www.mail-archive.com/emacs-orgmode@gnu.org/msg98762.html > > On Fri, Aug 7, 2015 at 12:47 PM, Xebar Saram wrote: > > > > Thx for the response Bastien > > > > i removed (require 'org-install) from my init.el file (correct?) and > > restarted emacs but get the same error > > > > Invalid function: org-babel-header-args-safe-fn > > > > i also tried now to downgrade to previous version from 3/8/15 and the > error > > is gone so its 100% reproducible with the 5/8/15 elpa version > > > > thx again > > > > Z > > > > > > > > On Fri, Aug 7, 2015 at 6:33 PM, Bastien wrote: > >> > >> Hi Xebar, > >> > >> try removing (require 'org-install), it is not needed since long. > >> > >> -- > >> Bastien > > > > >