Installing selenium-on-rails - error on rake test

I’m following the instructions on installing Selenium on rails: “Run the
Rakefile in the plugin???s directory to run the tests in order to see
that
everything works”

When I rake:

DKMac:selenium-on-rails DK$ rake test

I get the following error:

/Users/DK/.rvm/gems/ruby-1.8.7-p174/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:105:in
`const_missing’: uninitialized constant ActionView::Base::Helpers
(NameError)

Am I correct in running the rake task directly from the plugin directory
as
above?

Using Rails 2.3.8, Ruby 1.8.7. The issue above looks like was something
that
was coming up for people who tried to install this with rails 2.1, but
sounds like was fixed.

Thanks,

David