How to clock-out current org-task before exit from Emacs?

Question

How to clock-out current org-task before exit from Emacs? I tried

(add-hook 'kill-emacs-hook #'org-clock-out)

But if there is no current active tasks, Emacs says "No active clock" instead of exit. If there is an active task, in reality clock-out does not occur and the next time when I'm trying to make org-clock-in, see the proposal to resolve the conflict.

Answer 1

Solution:

(setq org-main-file "~/orgmode/main.org")
(defun valeriy/exit ()
        (with-current-buffer (find-file-noselect org-main-file)
          (save-excursion
            (org-clock-out nil t)
            (save-buffer))))
(add-hook 'kill-emacs-hook #'valeriy/exit)