Hi Jisang, Jisang Yoo <jisang.yoo.ac+...@gmail.com> writes:
> C-h v cannot find the variable org-export-section-number-format but > M-x customize-group RET org-export-general RET shows its > documentation, after that C-h v shows it is defined in org-exp.el > which is a file bundled with Emacs, and is not part of the latest org > package. Yes, you describe the root of the problem: forget about the variable `org-export-section-number-format' as it is not part of the version you are using. Maybe someone can help pointing to the new option you need to set. -- Bastien