Problem with acts_as_ferret demo

Hi Jens,

I copied the demo folder into my rails apps and also created the
ferret_production and ferret_test databases.

when I start the server and type this in the browser:

localhost:3000/content

I get the following error:

NameError in ContentController#new

uninitialized constant Ferret::Search::BooleanClause
RAILS_ROOT: ./script/…/config/…

Application Trace | Framework Trace | Full Trace
F:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:263:in
load_missing_constant' F:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:452:inconst_missing’
#{RAILS_ROOT}/vendor/plugins/acts_as_ferret/lib/a

Could you please tell me what’s going wrong?

Cheers

Cass