From mboxrd@z Thu Jan  1 00:00:00 1970
From: mwnn <mwnnlin@gmail.com>
Subject: Re: Unable to quit emacs after enabling Clocking
Date: Sun, 24 Oct 2010 08:54:48 +0530
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To: Noorul Islam <noorul@noorul.com>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>

The call trace is as shown below:

Debugger entered--Lisp error: (wrong-type-argument stringp (".~"))
   expand-file-name((".~") "/home/mwnn/.emacs.d/")
   make-backup-file-name-1("/home/mwnn/.emacs.d/org-clock-save.el")
   find-backup-file-name("/home/mwnn/.emacs.d/org-clock-save.el")
   backup-buffer()
   basic-save-buffer-2()
   basic-save-buffer-1()
   basic-save-buffer()
   save-buffer()
   org-clock-save()
   run-hooks(kill-emacs-hook)
   kill-emacs()
   save-buffers-kill-emacs(nil)
   save-buffers-kill-terminal(nil)
   call-interactively(save-buffers-kill-terminal nil nil)

Regards,
mwnn

On 10/24/2010 08:51 AM, Noorul Islam wrote:
> On Saturday, October 23, 2010, mwnn <mwnnlin@gmail.com> wrote:
>> Hi all,
>>    I added the following lines to my .emacs file to enable task 
>> clocking across emacs sessions:
>>
>>    (setq org-clock-persist 'history)
>>    (org-clock-persistence-insinuate)
>>
>> Now i am unable to quit Emacs with C-x C-c command. I get the 
>> following error message:
>>
>>    Saving file /home/mwnn/.emacs.d/org-clock-save.el...
>>    make-backup-file-name-1: Wrong type argument: stringp, (".~")
>>
>
> Can you get us a traceback of this?
>
> (setq debug-on-error t)
>
> and then try to quit emacs. It should show some traceback information.
> Post it here.
>
> Thanks and Regards
> Noorul
>