Unable to Load Sunlight How to over come the Load Error?

Hi friends I am attaching my ‘.rb’ file. I installed the ‘Sunlight’ gem
in my through my terminal, but when I am running the dependencies file I
am receiving the error…

require': cannot load such file -- sunlight (LoadError) from C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from C:/Ruby193/bin/rubysrc/Event_Manager/event_manager.rb:3:in

how to rectify it? please help me!

Have you tried uninstalling and reinstalling the gem?