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:.

You'll simply have to then add :END: after the appropriate properties, or
remove the :PROPERTIES: line that shouldn't be present (as the case may be).

Jon

On Mon, Nov 21, 2011 at 6:54 PM, Nick Dokos <nicholas.dokos@hp.com> wrote:

> Markus Heller <hellerm2@gmail.com> wrote:
>
>
> > 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 ...
> >
>
> M-x goto-char RET 18720 RET
>
> 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
>
>