Edge Rails + restful_authentication

Hi All,

I am trying to Integrate restful_authentication in my application
which uses the edge rails.
what really could be the problem?

saurabh@coolhost:~/bluechip$ ruby script/generate authenticated user
sessions
./script/../config/../vendor/rails/railties/lib/rails/plugin/
locator.rb:91:in `add': wrong number of arguments (4 for 1)
(ArgumentError)
        from ./script/../config/../vendor/rails/railties/lib/rails/
plugin/locator.rb:91:in `plugins'
        from ./script/../config/../vendor/rails/railties/lib/rails/
plugin/loader.rb:63:in `locate_plugins'
        from ./script/../config/../vendor/rails/railties/lib/rails/
plugin/loader.rb:62:in `map'
        from ./script/../config/../vendor/rails/railties/lib/rails/
plugin/loader.rb:62:in `locate_plugins'
        from ./script/../config/../vendor/rails/railties/lib/rails/
plugin/loader.rb:27:in `all_plugins'
        from ./script/../config/../vendor/rails/railties/lib/rails/
plugin/loader.rb:22:in `plugins'
        from ./script/../config/../vendor/rails/railties/lib/rails/
plugin/loader.rb:45:in `add_plugin_load_paths'
        from ./script/../config/../vendor/rails/railties/lib/
initializer.rb:235:in `add_plugin_load_paths'
         ... 6 levels...
        from /home/saurabh/bluechip/vendor/rails/railties/lib/commands/
generate.rb:1
        from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:
27:in `gem_original_require'
        from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:
27:in `require'
        from script/generate:3