wrong number of arguments (0 for 1) (ArgumentError)

if i run rails serve i am fa
C:\forex>rails server
=> Booting WEBrick
=> Rails 3.0.0 application starting in development on
http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
Exiting
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/cache/file_store.rb:17:in
`initialize': wrong number of arguments (0 for 1) (ArgumentError)
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/cache.rb:69:in
`new'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/cache.rb:69:in
`lookup_store'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.0/lib/action_controller/caching.rb:49:in
`cache_store='
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.0/lib/action_controller/railtie.rb:54:in
`block (3 levels) in <class:Railtie>'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.0/lib/action_controller/railtie.rb:54:in
`each'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.0/lib/action_controller/railtie.rb:54:in
`block (2 levels) in <class:Railtie>'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:36:in
`instance_eval'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:36:in
`execute_hook'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:26:in
`on_load'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.0/lib/action_controller/railtie.rb:52:in
`block in <class:Railtie>'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/initializable.rb:25:in
`instance_exec'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/initializable.rb:25:in
`run'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/initializable.rb:50:in
`block in run_initializers'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/initializable.rb:49:in
`each'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/initializable.rb:49:in
`run_initializers'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/application.rb:134:in
`initialize!'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/application.rb:77:in
`method_missing'
        from C:/forex/config/environment.rb:5:in `<top (required)>'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239:in
`require'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239:in
`block in require'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:225:in
`block in load_dependency'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:591:in
`new_constants_in'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:225:in
`load_dependency'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0/lib/active_support/dependencies.rb:239:in
`require'
        from C:/forex/config.ru:3:in `block in <main>'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/builder.rb:46:in
`instance_eval'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/builder.rb:46:in
`initialize'
        from C:/forex/config.ru:1:in `new'
        from C:/forex/config.ru:1:in `<main>'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/builder.rb:35:in
`eval'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/builder.rb:35:in
`parse_file'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/server.rb:162:in
`app'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/server.rb:248:in
`wrapped_app'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/server.rb:213:in
`start'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands/server.rb:65:in
`start'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb:30:in
`block in <top (required)>'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb:27:in
`tap'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb:27:in
`<top (required)>'
        from script/rails:6:in `require'
        from script/rails:6:in `<main>'