mongrel crashes with activerdf

[samur araujo]

I identified the following problem when starting the rails with mongrel and activerdf:

"1124"
=> Booting Mongrel (use 'script/server webrick' to force WEBrick)
Usage: -e [options]
=> Rails application starting on http://127.0.0.1:3001
=> Call with -d to detach
=> Ctrl-C to shutdown server
** Starting Mongrel listening at 127.0.0.1:3001
** Starting Rails with development environment...
** Rails loaded.
** Loading any Rails specific GemPlugins
Exiting
C:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/mongrel.rb:16: warning: already initialized constant OPTIONS
C:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/mongrel.rb:20: undefined method `options' for []:Array (NoMethodError)
 from C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in `gem_original_require'
 from C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in `require'
 from C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
 from C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in'
 from C:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require'
 from C:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39
 from C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
 from C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
 from ./script/server:3
 from -e:2:in `load'
 from -e:2

After several days trying to solve this problem, I resolve to install all my environment from scratch, and I have identified that the problem occurs soon after I install the activerdf.
I think there is something confliting with mongrel.