Rails - Nov 2006 - Can''t run script/console on OS X

Hi there,

I just insalled RoR on a OS X 10.4.2.  Everyting works great so far,
except I cannot run script/console, which is used in most tutorial I
come across.

I installed RoR using Locomotive, but it never really worked, so I did
a manual install of RoR afterwards.  Could this cause conflicts in
betweend libs my environment?

Here is the stack trace:

$ script/console
Loading development environment.
/usr/lib/ruby/1.8/irb/completion.rb:10:in `require'': No such file to
load -- readline (LoadError)
        from /usr/lib/ruby/1.8/irb/completion.rb:10
        from /usr/lib/ruby/1.8/irb/init.rb:218:in `require''
        from /usr/lib/ruby/1.8/irb/init.rb:218:in `load_modules''
        from /usr/lib/ruby/1.8/irb/init.rb:216:in `each''
        from /usr/lib/ruby/1.8/irb/init.rb:216:in `load_modules''
        from /usr/lib/ruby/1.8/irb/init.rb:21:in `setup''
        from /usr/lib/ruby/1.8/irb.rb:54:in `start''
        from /usr/bin/irb:13