Re: Lisp error: (wrong-type-argument stringp nil)

["Sébastien Vauban" <wxhgmqzgwmuf-geNee64TY+gS+FvcfC7Uqw@public.gmane.org>]

Carsten Dominik,

Carsten Dominik wrote:
>> I don't understand the cause of this, moreover as I have the linked file
>> open in my Emacs.
>>
>> Of course, since I've just reinstalled my Emacs, Org, and so on, on a new
>> Windows setup, I have many small differences with before.
>>
>> Someone would have an idea for this?
>
> do you have agenda-follow-mode on?

Nope. I only use that once in a month, when checking clock times and
description of tasks.

Not enabled in yesterday's session.


> Also, can you please hit the bug again in the debugger and then press
>
> e m RET
>
> and let me know what the debuffer reports?  This should retrieve the value of
> m.
>
> One possible reason to get this bug is to kill the buffer one of one of the
> agenda files and then to revisit it.  The marker will then not  be nil, but it
> will point nowhere....

I killed one of the org-agenda-files, and moved the cursor on it.
I could reproduce the same problem as yesterday.

Entering debugger...

--8<---------------cut here---------------start------------->8---
Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  set-buffer(nil)
  (if (markerp m) (set-buffer (marker-buffer m)))
  (save-excursion (if (markerp m) (set-buffer ...)) (save-excursion (goto-char ...) (org-display-outline-path t)))
  (org-with-point-at m (org-display-outline-path t))
  (if (and m org-agenda-show-outline-path) (org-with-point-at m (org-display-outline-path t)))
  (let ((m ...)) (if (and org-agenda-follow-mode m) (org-agenda-show)) (if (and m org-agenda-show-outline-path) (org-with-point-at m ...)))
  org-agenda-do-context-action()
  org-agenda-next-line()
  call-interactively(org-agenda-next-line nil nil)
--8<---------------cut here---------------end--------------->8---

=e m RET= displays:

  #<marker in no buffer>

Though, here and now, pressing =g= resolves the problem. Agenda is refreshed,
with the missing file being reloaded, and I can once again move and click on
any line of the agenda.

Yesterday, there were 2 differences:

- =g= did not solve anything

- all the agenda lines were bugging...

Unluckily, I don't enough context now to be able to reproduce that exact same
problem as of yesterday. I said it only occurred a couple of times, over a
couple of days.

Thanks!

Best regards,
  Seb

-- 
Sébastien Vauban


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