When I try to add generator to controller, I got error as "Missing the
Rails 2.3.5 gem. Please `gem install -v=2.3.5 rails`, update your
RAILS_GEM_VERSION setting in config/environment.rb for the Rails version
you do have installed, or comment out RAILS_GEM_VERSION to use the
latest version installed."
Can somebody please let me know how to install rails gem 2.3.5
successfully on a window machine
Thanks in advance for your help