Help : Error in scrubyt

hi

i have one problem

when i runing the my code will come this erros :

================================
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
gem_original_re quire': no such file to load -- firewatir (LoadError) from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in re
quire’
from
C:/Ruby/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/core/navi
gation/agents/firewatir.rb:2
from
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in ge m_original_require' from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in re
quire’
from
C:/Ruby/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt.rb:29
from
C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in ge m_original_require' from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in re
quire’
from Test.rb:2

this is my code:

==========

$:.unshift File.join(File.dirname(FILE), ‘…/…/…/lib’)

require ‘scrubyt’
google_data = Scrubyt::Extractor.define do
#Perform the action(s)
fetch ‘Google
fill_textfield ‘q’, ‘ruby’
submit
#Construct the wrapper
link “Ruby P.ming Language” do
url “href”, :type => :attribute
end
next_page “Next”, :limit => 2
end

google_data.to_xml.write($stdout, 1)
Scrubyt::ResultDumper.print_statistics(google_data)

please help me
what is my problem

thank you