Why would I be getting these errors when running any of the commands in rails (rails console/rake/etc)?
$ rails server /var/lib/gems/1.9.0/gems/railties-3.0.0.beta/lib/rails.rb:25:in `<top (required)>': undefined method `default_external=' for Encoding:Class (NoMethodError) from /var/lib/gems/1.9.0/gems/railties-3.0.0.beta/lib/rails/all.rb: 1:in `require' from /var/lib/gems/1.9.0/gems/railties-3.0.0.beta/lib/rails/all.rb: 1:in `<top (required)>' from /home/emily/Work/echantillons/config/application.rb:3:in `require' from /home/emily/Work/echantillons/config/application.rb:3:in `<top (required)>' from /var/lib/gems/1.9.0/gems/railties-3.0.0.beta/lib/rails/ commands.rb:36:in `require' from /var/lib/gems/1.9.0/gems/railties-3.0.0.beta/lib/rails/ commands.rb:36:in `<top (required)>' from /home/emily/Work/echantillons/script/rails:10:in `require' from /home/emily/Work/echantillons/script/rails:10:in `<main>'