-sh-4.2$ rails s
/usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/delayed_job-2.1.3/lib/delayed/yaml_ext.rb:30:in `remove_method': method `to_yaml' not defined in Class (NameError)
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/delayed_job-2.1.3/lib/delayed/yaml_ext.rb:30:in `<class:Class>'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/delayed_job-2.1.3/lib/delayed/yaml_ext.rb:28:in `<top (required)>'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `block in require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:225:in `block in load_dependency'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:593:in `new_constants_in'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:225:in `load_dependency'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/activesupport-3.0.10/lib/active_support/dependencies.rb:239:in `require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/delayed_job-2.1.3/lib/delayed_job.rb:6:in `<top (required)>'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/bundler-1.1.3/lib/bundler/runtime.rb:68:in `require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/bundler-1.1.3/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/bundler-1.1.3/lib/bundler/runtime.rb:66:in `each'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/bundler-1.1.3/lib/bundler/runtime.rb:66:in `block in require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/bundler-1.1.3/lib/bundler/runtime.rb:55:in `each'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/bundler-1.1.3/lib/bundler/runtime.rb:55:in `require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/bundler-1.1.3/lib/bundler.rb:119:in `require'
	from /home/local/PENNYWISE/venkatab/Desktop/work_space/redzone-latest-updated/config/application.rb:8:in `<top (required)>'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/railties-3.0.10/lib/rails/commands.rb:28:in `require'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/railties-3.0.10/lib/rails/commands.rb:28:in `block in <top (required)>'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/railties-3.0.10/lib/rails/commands.rb:27:in `tap'
	from /usr/local/rvm/gems/ruby-1.9.3-p0@redzone/gems/railties-3.0.10/lib/rails/commands.rb:27:in `<top (required)>'
	from script/rails:6:in `require'
	from script/rails:6:in `<main>'