I had the same problem in 6.15. It seems to be fixed in 6.15d.
Regards
David Lord
2008/12/18 Uwe Jochum :
> Carsten,
>
> it seems that the newest version of Orgmode (6.15a) has a bug: When I try to
> move a tree/subtree to the archive (C-c C-x C-s) I get this message
>
> Wrong type argument: num
Carsten,
it seems that the newest version of Orgmode (6.15a) has a bug: When I try
to move a tree/subtree to the archive (C-c C-x C-s) I get this message
Wrong type argument: number-or-marker-p, nil
and the tree/subtree isn't moved.
The entry in the menu (Org --> Archive) doesn't work either
