FWIW I do not see this issue on the latest version of org on the master (dev) branch.
Based on the backtrace, it looks like for some reason comment-start-skip is nil in your emacs session. Here's the definition of org-agenda-skip: (defun org-agenda-skip () "Throw to `:skip' in places that should be skipped. Also moves point to the end of the skipped region, so that search can continue from there." (let ((p (point-at-bol)) to) (when (or (save-excursion (goto-char p) (looking-at comment-start-skip)) (and org-agenda-skip-archived-trees (not org-agenda-archives-mode) (get-text-property p :org-archived) (org-end-of-subtree t)) (and org-agenda-skip-comment-trees (get-text-property p :org-comment) (org-end-of-subtree t)) (and (setq to (or (org-agenda-skip-eval org-agenda-skip-function-global) (org-agenda-skip-eval org-agenda-skip-function))) (goto-char to)) (org-in-src-block-p t)) (throw :skip t)))) Can you recreate this error in an emacs -Q session with only that org version loaded? On Fri, Aug 5, 2016 at 3:50 AM Robert Irelan <rire...@gmail.com> wrote: > Trying again since it wasn't received the first time. > > On Tue, Aug 2, 2016 at 12:02 PM Robert Irelan <rire...@gmail.com> wrote: > >> Ever since updating to 20160801, I've encountered the following error >> whenever trying to run org-agenda-list: >> > -- Kaushal Modi