I get this error "Could not get visitors lock: Check whether the web server
can create the directory /tmp/persistent/ndoc/wiki/temp and whether it can
create files in it."

But I did see a cached version when searching Google and it talks about how
to make it work, but that it does not work with things like generics.
Something I also read said that it may mess a page up if it comes along
something with generics.