Hi Shilesh,
I’ll kindly ask you to direct your question to rubyonrails-talk list with a more complete description of when did it stop working, are you using edge Rails or gem, and possibly paste your environment.rb
file and full stack trace of the error (use the --trace argument) somewhere (like pastie.caboo.se).
Could I kindly ask you to post help requests in the general Rails mailing list (http://groups.google.com/group/rubyonrails-talk)? This core list is meant for discussions about developing Rails the framework.