SLIDE error

[Elihu Smails]

I have installed the latest version of SLIDE, and downloaded the latest
reference policy (20070629).  I open up eclipse and create a new policy
module project.  I then point Eclipse to the location where I unpacked the
reference policy (refpolicy-20070629.tar.bz2 ).  I then get the following
error:

Rules.modular:152: *** No enabled modules! modules.conf may need to be
generated by using "make conf".  Stop.

Can anyone please tell me where I am going wrong?
Thanks.