我只是尝试在新的 ubuntu 12.10 上安装 rvm/ruby/gems/rails，经过许多错误和谷歌搜索后，我想创建我的第一个应用程序，但我收到了这个错误。我怎样才能让它工作？
root@filip-Ideapad-Z570:/rails_projects# rails new my_fisrt_app
create
create README.rdoc
create Rakefile
create config.ru
create .gitignore
create Gemfile
create app
create app/assets/images/rails.png
create app/assets/javascripts/application.js
create app/assets/stylesheets/application.css
create app/controllers/application_controller.rb
create app/helpers/application_helper.rb
create app/views/layouts/application.html.erb
create app/mailers/.gitkeep
create app/models/.gitkeep
create config
create config/routes.rb
create config/application.rb
create config/environment.rb
create config/environments
create config/environments/development.rb
create config/environments/production.rb
create config/environments/test.rb
create config/initializers
create config/initializers/backtrace_silencers.rb
create config/initializers/inflections.rb
create config/initializers/mime_types.rb
create config/initializers/secret_token.rb
create config/initializers/session_store.rb
create config/initializers/wrap_parameters.rb
create config/locales
create config/locales/en.yml
create config/boot.rb
create config/database.yml
create db
create db/seeds.rb
create doc
create doc/README_FOR_APP
create lib
create lib/tasks
create lib/tasks/.gitkeep
create lib/assets
create lib/assets/.gitkeep
create log
create log/.gitkeep
create public
create public/404.html
create public/422.html
create public/500.html
create public/favicon.ico
create public/index.html
create public/robots.txt
create script
create script/rails
create test/fixtures
create test/fixtures/.gitkeep
create test/functional
create test/functional/.gitkeep
create test/integration
create test/integration/.gitkeep
create test/unit
create test/unit/.gitkeep
create test/performance/browsing_test.rb
create test/test_helper.rb
create tmp/cache
create tmp/cache/assets
create vendor/assets/javascripts
create vendor/assets/javascripts/.gitkeep
create vendor/assets/stylesheets
create vendor/assets/stylesheets/.gitkeep
create vendor/plugins
create vendor/plugins/.gitkeep
run bundle install
/var/lib/gems/1.9.1/gems/bundler-1.3.4/lib/bundler/ui.rb:36:in `initialize': undefined method `[]' for #<Thor::Shell::Color:0x8720238> (NoMethodError)
from /usr/lib/ruby/vendor_ruby/bundler/cli.rb:14:in `new'
from /usr/lib/ruby/vendor_ruby/bundler/cli.rb:14:in `initialize'
from /usr/lib/ruby/vendor_ruby/bundler/vendor/thor.rb:246:in `new'
from /usr/lib/ruby/vendor_ruby/bundler/vendor/thor.rb:246:in `dispatch'
from /usr/lib/ruby/vendor_ruby/bundler/vendor/thor/base.rb:389:in `start'
from /var/lib/gems/1.9.1/gems/bundler-1.3.4/bin/bundle:20:in `block in <main>'
from /var/lib/gems/1.9.1/gems/bundler-1.3.4/lib/bundler/friendly_errors.rb:3:in `with_friendly_errors'
from /var/lib/gems/1.9.1/gems/bundler-1.3.4/bin/bundle:20:in `<main>'
我是 ruby on rails 的新手，我真的无法在这里或在谷歌上找到如何解决这个问题，有人可以帮我解决这个问题吗？
/var/lib/gems/1.9.1/gems/bundler-1.3.4/lib/bundler/ui.rb:36:in `initialize': undefined method `[]' for #<Thor::Shell::Color:0x8720238> (NoMethodError)