[O] Symbol's function definition is void: org-write-agenda

[Karl Voit]

Hi!

I am using Org-mode from git and do face a problem when using a
function that previously worked for a couple of weeks without any
problem:

Error-Message:
#+begin_verse
vk-export-agenda: Symbol's function definition is void: org-write-agenda
#+end_verse

#+begin_src emacs-lisp
(defun vk-export-agenda()
  "Exports monthly Org-mode agenda to agenda.ics file"
  (interactive)  
  (org-agenda-list nil nil 60)
  (org-write-agenda "~/share/all/org-mode/agenda.ics")
)
#+end_src

Do you have an idea, what might have changed?

Thanks!

-- 
Karl Voit