Forum OpenACS Q&A: Response to Error in server log

Posted by Don Baccus on
Jose, the error you're getting is due to not defining your server name  in the virtual server's ACS configuration file (the one you make from  parameters/ad.tcl).

This means that the predicate referenced by ad_parameters hasn't been defined for your virtual server, so ad_parameters returns "".

if [ "" && ... ] is indeed an error, just like Tcl sez.