I just tested this.
M-x goto-char RET <reported position> RET ;; In this case 18720
Sends you directly to the end of your :PROPERTIES: line that does not have an associated :END:.
Markus Heller <hellerm2@gmail.com> wrote:M-x goto-char RET 18720 RET
> AS for an example, I'm in one of my org files and I do C-TAB and get the
> following error:
>
> OVERVIEW
> CONTENTS...done
> SHOW ALL
> if: :END: line missing at position 18720
> Quit
> Mark set
>
> Where is position 18720? I apologize if this is a stupid question, but
> I can't seem to figure this out ...
>
will take you there, but it's probably at the very end of the buffer: search backwards
for :PROPERTIES: and you should be able to find it (if your diagnosis is
indeed correct).
Nick