C:\timothyf>ruby script/server
=> Booting WEBrick
=> Rails 2.3.5 application starting on http://0.0.0.0:3000C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/gem_dependency.rb:119:Warni
ng: Gem::Dependency#version_requirements is deprecated and will be removed on or
after August 2010. Use #requirement
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependenci
es.rb:440:in `load_missing_constant': uninitialized constant ActiveSupport::Conc
ern (NameError)
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_suppo
rt/dependencies.rb:80:in `const_missing'
from
C:/Ruby/lib/ruby/gems/1.8/gems/disguise-3.0.2/lib/disguise/controll
ers/disguise_application.rb:4
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/activesupport-2.3.5/lib/active_suppo
rt/dependencies.rb:156:in `require'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_suppo
rt/dependencies.rb:521:in `new_constants_in'
from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_suppo
rt/dependencies.rb:156:in `require'
from
C:/Ruby/lib/ruby/gems/1.8/gems/disguise-3.0.2/lib/disguise.rb:2
... 18 levels...
from C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:8
4
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 script/server:3
how fix this problem?
help me...