It seems like it's a beta 3 error or something. I am not getting it because I am loading the latest-and-greatest OpenACS from the CVS.
You can fetch the latest OpenACS from the Sourceforge CVS server with:
cvs -d:pserver:anonymous@cvs.acs-pg.sourceforge.net:/cvsroot/acs-pg login
(Assuming you have CVS installed on your machine). You may need to do a "export CVS_RSH=ssh"
