Forum OpenACS Q&A: Response to 'error in serving group pages' as ASC opening page

Dear All,

I have similiar problem, my error msg:

[Tue Jun  5 17:16:45 2001] [error] [client 129.47.1.161] [uri: /]
  /tcl/user-group-defs.tcl: function ug_serve_group_pages: first element in url_list is not [ad_parameter GroupsDirectory ug]

How to fix the error.
Pls advice me.

Regards.