"Brent Vukmer" <bvukmer at blackboard.com> wrote:
> When I try to install, I'm getting an error in MonoidGraph>>add: , because the cache object is null. 

Hopefully it is nil and not null. Otherwise you are on the wrong
mailinglist. :-)

regards, Göran

PS. Sorry, couldn't help me. I am also sometimes forced to work in
Java...