Upgrading to Org-mode 8.3 via the package repository: fixing an error

Today I tried to upgrade Emacs Org-mode to version 8.3. I used the regular package upgrade, but got the following error:

Invalid function: org-babel-header-args-safe-fn

Unfortunately, Irreal’s advice to byte-compile ob-R.el (twice) didn’t work out for me (by the way: thanks Planet Emacsen for aggregating so many useful posts!).

Browsing through some discussions on the emacs-orgmode mailing list it seemed that the error was due to org-mode being loaded while reinstalling the package. So I did the following:

• I started emacs without loading my personal settings: emacs -Q

• Next I ran the following code from my .emacs file in the scratch buffer (M-x eval-region) to set up the package manager:

  (require 'package)
  (package-initialize)
  ;; Add the original Emacs Lisp Package Archive
  (add-to-list 'package-archives '("melpa" . "http://melpa.org/packages/") t)
  ;; Add the user-contributed repository
  (add-to-list 'package-archives
               '("marmalade" . "http://marmalade-repo.org/packages/"))
  

• And finally I used the package manager to remove and then install the latest org package.

  Now all is fine again! 🙂

  And by the way: this is my first blog post using Org2blog!

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