unable to run a command in production

hi guys . i am trying to create a mailer in production i used this command ruby script/generate mailer cronjob . when i run the command it shows this error

config.load_once_paths is deprecated and removed in Rails 3, please use autoload_once_paths instead config.load_once_paths= is deprecated and removed in Rails 3, please use autoload_once_paths= instead config.load_paths is deprecated and removed in Rails 3, please use autoload_paths instead config.load_paths= is deprecated and removed in Rails 3, please use autoload_paths= instead /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/ active_record/connection_adapters/abstract/connection_specification.rb: 62:in `establish_connection': development database is not configured (ActiveRecord::AdapterNotSpecified)   from /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/ active_record/connection_adapters/abstract/connection_specification.rb: 55:in `establish_connection'   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/ initializer.rb:438:in `initialize_database'   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/ initializer.rb:141:in `process'   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/ initializer.rb:113:in `send'   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/ initializer.rb:113:in `run'   from /home/classya/public_html/pegasus/config/environment.rb:5   from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `gem_original_require'   from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `require'   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/commands/ generate.rb:1   from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `gem_original_require'   from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 31:in `require'   from script/generate:3 help me out guys.

thanks in advance

Try RAILS_ENV=production ruby script/generate mailer cronjob that is how you would do it using rake at least.

Colin