`<top (required)>': undefined method `default_external=' for Encoding:Class (NoMethodError)

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 methoddefault_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

On Feb 24, 5:20 pm, ivoryivy [email protected] wrote:

Why would I be getting these errors when running any of the commands
in rails (rails console/rake/etc)?

Looks like you are running ruby 1.9.0, 1.9.0 was a somewhat unstable
development release of ruby. The first production ready release of the
1.9 series was 1.9.1 and you should be using that if you want to run
ruby 1.9

Fred

I got everything to work in downgrading to Rails 2.3.5 (using beta
means there isn’t much documentation out there and it was quite
inconvenient) and upgrading to Ruby 1.9.1. Thanks!

On Feb 24, 9:41 pm, Frederick C. [email protected]

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