I get this message when I try to install restful_authentication plugin and I am stuck. I am running Windows Vista (don't ask...).
ruby script\plugin install -r 3072
git://github.com/technoweenie/restful-authentication.git c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_re quire': no such file to load -- ./script/../config/../vendor/rails/ railties/lib/ initializer (LoadError) from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 27:in `re quire' from ./script/../config/boot.rb:46:in `load_initializer' from ./script/../config/boot.rb:39:in `run' from ./script/../config/boot.rb:11:in `boot!' from ./script/../config/boot.rb:109 from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 27:in `ge m_original_require' from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 27:in `re quire' from script/plugin:2