Forum: Rails Engines The engines plugin is now installed, or is it?

i've installed the engines plug-in, and got this lovely message: The
engines plugin is now installed. Feels good, right? Yeah.
...

also i've added these lines to my environment.rb

ADMIN_PAGE_DIR="page"
Engines.start :admin_pages

and if i try to start WEBrick, i get these messages.

What can be possible wrong?

P.S: I've also downloaded the admin_pages engine to plug-ins folder and
made the necessary changes in routes.rb, but this doesn't seem an
admin_pages engine specific error.

thanks,
alp

C:\Users\ungaro\Documents\Aptana IDE Beta\1000>ruby script/server
=> Booting WEBrick...
./script/../config/../config/environment.rb:65: undefined method `start'
for Eng
ines:Module (NoMethodError)
        from
F:/apache/xampp/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require
.rb:27:in `gem_original_require'
        from
F:/apache/xampp/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require
.rb:27:in `require'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib
/active_support/dependencies.rb:495:in `require'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib
/active_support/dependencies.rb:342:in `new_constants_in'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib
/active_support/dependencies.rb:495:in `require'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/command
s/servers/webrick.rb:52
        from
F:/apache/xampp/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require
.rb:27:in `gem_original_require'
        from
F:/apache/xampp/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require
.rb:27:in `require'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib
/active_support/dependencies.rb:495:in `require'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib
/active_support/dependencies.rb:342:in `new_constants_in'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib
/active_support/dependencies.rb:495:in `require'
        from
F:/apache/xampp/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/command
s/server.rb:39
        from
F:/apache/xampp/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require
.rb:27:in `gem_original_require'
        from
F:/apache/xampp/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require
.rb:27:in `require'
        from script/server:3