i am using active record in my program and cannot understand what this
error means.

require 'watir'

include Watir
require 'active_record'

ActiveRecord::Base.establish_connection(
:adapter => "mysql",
:host => "127.0.0.1",
#:host => "sun",
:database => "Trader",
:username => "root",
:password => "password"
)
class Rawdata < ActiveRecord::Base
   set_table_name "rawdatas"

end

E:\TradingTools\trader\app\helpers>GrabMBTTrades.rb
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems.rb:233:in `activate': can't
activate
activesupport (= 3.0.1, runtime) for ["activerecord-3.0.1"], already
activated a
ctivesupport-2.3.9 for ["firewatir-1.6.6", "watir-1.6.6"]
(Gem::LoadError)
        from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems.rb:249:in
`activate'
        from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems.rb:248:in
`each'
        from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems.rb:248:in
`activate'
        from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/
custom_require.rb:35:in
`require'
        from E:/TradingTools/trader/app/helpers/GrabMBTTrades.rb:8