rails gem error:i have a new rails application with the new controller called test,and i have tried to call the method inside the test controller,it gives me error like below:

rubygems/custom_require.rb:31:in `require'     script/server:3 /!\ FAILSAFE /!\ Thu May 20 11:15:33 +0530 2010   Status: 500 Internal Server Error   no such file to load -- sqlite3     c:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_origina l_require'     c:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'     c:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/ active_support/depend encies.rb:156:in `require'     c:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/ active_support/depend encies.rb:521:in `new_constants_in'     c:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/ active_support/depend encies.rb:156:in `require'     c:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/ active_support/core_e xt/kernel/requires.rb:7:in `require_library_or_gem'     c:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/ active_support/core_e xt/kernel/reporting.rb:11:in `silence_warnings'     c:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/ active_support/core_e xt/kernel/requires.rb:5:in `require_library_or_gem'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/sqlite3_adapter.rb:10:in `sqlite3_connection'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:223:in `send'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:223:in `new_connection'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:188:in `checkout'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:184:in `loop'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:184:in `checkout'     c:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:183:in `checkout'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:98:in `connection'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:326:in `retrieve_connection'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_specification.rb:123:in `retrieve_connection'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_specification.rb:115:in `connection'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/query_ca che.rb:9:in `cache'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/query_ca che.rb:28:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/ active_record/connecti on_adapters/abstract/connection_pool.rb:361:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/ action_controller/string _coercion.rb:25:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/ methodoverride.rb:24:in ` call'     c:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/ action_controller/params _parser.rb:15:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/ action_controller/sessio n/cookie_store.rb:93:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/ action_controller/failsa fe.rb:26:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchroniz e'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/ action_controller/dispat cher.rb:114:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/ action_controller/reload er.rb:34:in `run'     c:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/ action_controller/dispat cher.rb:108:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/ static.rb:31:in `c all'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/rack/ log_tailer.rb:17:i n `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/ content_length.rb:13:in ` call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/chunked.rb: 15:in `call'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/ mongrel.rb:64:in `process'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:1 59:in `process_client'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:1 58:in `each'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:1 58:in `process_client'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:2 85:in `run'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:2 85:in `initialize'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:2 85:in `new'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:2 85:in `run'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:2 68:in `initialize'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:2 68:in `new'     c:/Ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/ mongrel.rb:2 68:in `run'     c:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/ mongrel.rb:34:in `run'     c:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb: 111     c:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_origina l_require'     c:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'     script/server:3

what was the error ,what should do if i am going wrong anywhere in this segment .........

The first line of the error is giving you the most important information. It doesn't look like you have sqlite (or the gems to access it from Rails) installed on your platform.

A bit of Googling for "<my os> Rails Sqlite install" should help you.