Рельсы 3, почему я не могу использовать командную строку в Ubuntu?

Я запускаю RubyMine 4 на Ubuntu 11.10, в RubyMine все отлично, я могу запустить сервер, разработать и т. Д., Но когда мне нужно работать в командной строке, я просто не могу ничего сделать..

Я перешел в каталог приложений и попытался:

$ rails s

Я получил:

The program 'rails' is currently not installed.  You can install it by typing:
sudo apt-get install rails

Странно, почему он не установлен, хотя я могу нормально работать в RubyMine IDE!

Мне нужно было использовать командную строку, чтобы удалить драгоценный камень, чтобы обнаружить, что я не могу использовать командную строку, как следует..

sam@ubuntu:~/Documents/RoR/course_builder$ gem uninstall 'capybara-firebug'
ERROR:  While executing gem ... (Gem::InstallError)
    cannot uninstall, check `gem list -d capybara-firebug`

$ gem list -d даст мне:

*** LOCAL GEMS ***

там нет драгоценных камней..

если я наберу:

$ bundle install

Я получил:

/usr/lib/ruby/vendor_ruby/bundler/rubygems_ext.rb:8:in `require': no such file to load -- rubygems (LoadError)
    from /usr/lib/ruby/vendor_ruby/bundler/rubygems_ext.rb:8
    from /usr/lib/ruby/vendor_ruby/bundler.rb:11:in `require'
    from /usr/lib/ruby/vendor_ruby/bundler.rb:11
    from /usr/bin/bundle:4:in `require'
    from /usr/bin/bundle:4

хотя bundle install внутри RubyMine работает нормально

так чего мне здесь не хватает?!! почему я не могу использовать командную строку..?

вот моя драгоценная среда:

RUBYGEMS VERSION: 1.8.10
RUBY VERSION: 1.9.3 (2011-10-30 patchlevel 0) [i686-linux]
INSTALLATION DIRECTORY: /home/sam/.rvm/gems/ruby-1.9.3-p0@global
RUBY EXECUTABLE: /home/sam/.rvm/rubies/ruby-1.9.3-p0/bin/ruby
EXECUTABLE DIRECTORY: /home/sam/.rvm/gems/ruby-1.9.3-p0@global/bin
RUBYGEMS PLATFORMS:
  ruby
  x86-linux
GEM PATHS:
   /home/sam/.rvm/gems/ruby-1.9.3-p0@global
GEM CONFIGURATION:
   :update_sources => true
   :verbose => true
   :benchmark => false
   :backtrace => false
   :bulk_threshold => 1000
REMOTE SOURCES:
   http://rubygems.org/
----------------------
IDE: JetBrains RubyMine 4.0.1, build #RM-113.20
OS: Linux 3.0.0-16-generic[i386]
Java: 1.6.0_23-b23
RubyMine SDK Environment:
Sdk: RVM: ruby-1.9.3-p0 [global]
Sdk Version: ver.1.9.3p0 ( revision 33570) p0
Ruby Interpreter: /home/sam/.rvm/rubies/ruby-1.9.3-p0/bin/ruby
RVM Sdk: yes, gemset:global
RVM Home: /home/sam/.rvm
Sdk Language Level: 1.9
Sdk Load Path:
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/i686-linux
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/vendor_ruby/1.9.1
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/vendor_ruby/1.9.1/i686-linux
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/vendor_ruby
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1
     ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/i686-linux
     /opt/RubyMine-4.0.1/rubystubs19
Sdk Gem paths: 
     ~/.rvm/gems/ruby-1.9.3-p0@global/bundler/gems
     ~/.rvm/gems/ruby-1.9.3-p0@global/gems
Gems used for 'hope':
     xpath (bundled(0.1.4))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/xpath-0.1.4
     rack (1.3.6)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rack-1.3.6
     rspec-expectations (2.7.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rspec-expectations-2.7.0
     rack-mount (bundled(0.8.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rack-mount-0.8.3
     rubyzip (bundled(0.9.5))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rubyzip-0.9.5
     bcrypt-ruby (bundled(3.0.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/bcrypt-ruby-3.0.1
     activemodel (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/activemodel-3.1.0
     client_side_validations (3.1.4)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/client_side_validations-3.1.4
     cocoon (bundled(1.0.15))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/cocoon-1.0.15
     diff-lcs (1.1.3)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/diff-lcs-1.1.3
     sprockets (2.0.3)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/sprockets-2.0.3
     rack-ssl (1.3.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rack-ssl-1.3.2
     simple_form (1.5.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/simple_form-1.5.2
     thor (bundled(0.14.6))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/thor-0.14.6
     rdoc (3.12)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rdoc-3.12
     rubyzip (bundled(0.9.6.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rubyzip-0.9.6.1
     foreigner (1.1.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/foreigner-1.1.1
     mocha (bundled(0.10.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/mocha-0.10.3
     mime-types (bundled(1.17.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/mime-types-1.17.2
     treetop (bundled(1.4.10))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/treetop-1.4.10
     therubyracer (bundled(0.9.9))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/therubyracer-0.9.9
     kaminari (bundled(0.13.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/kaminari-0.13.0
     selenium-webdriver (bundled(2.17.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/selenium-webdriver-2.17.0
     coffee-script (2.2.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/coffee-script-2.2.0
     sass (bundled(3.1.14))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/sass-3.1.14
     mail (bundled(2.3.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/mail-2.3.0
     rack-mount (0.8.3)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rack-mount-0.8.3
     will_paginate (bundled(3.0.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/will_paginate-3.0.3
     i18n (0.6.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/i18n-0.6.0
     rspec-mocks (bundled(2.7.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rspec-mocks-2.7.0
     ansi (bundled(1.4.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/ansi-1.4.1
     orm_adapter (0.0.6)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/orm_adapter-0.0.6
     rspec-core (2.7.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rspec-core-2.7.1
     pg (0.13.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/pg-0.13.2
     metaclass (0.0.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/metaclass-0.0.1
     builder (3.0.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/builder-3.0.0
     execjs (bundled(1.3.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/execjs-1.3.0
     uglifier (bundled(1.2.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/uglifier-1.2.3
     jquery-rails (bundled(1.0.19))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/jquery-rails-1.0.19
     rspec-expectations (bundled(2.7.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rspec-expectations-2.7.0
     bundler (1.0.21)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21
     postgres-pr (bundled(0.6.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/postgres-pr-0.6.3
     capybara-firebug (bundled(1.0.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/capybara-firebug-1.0.1
     rspec-rails (bundled(2.7.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rspec-rails-2.7.0
     warden (1.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/warden-1.1.0
     rails (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rails-3.1.0
     sass-rails (3.1.5)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/sass-rails-3.1.5
     capybara-firebug (1.0.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/capybara-firebug-1.0.1
     rspec (2.7.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rspec-2.7.0
     actionpack (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/actionpack-3.1.0
     rack (bundled(1.3.6))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rack-1.3.6
     mime-types (1.17.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/mime-types-1.17.2
     capybara (bundled(1.1.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/capybara-1.1.2
     nokogiri (1.5.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/nokogiri-1.5.0
     rake (0.9.2.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rake-0.9.2.2
     nokogiri (bundled(1.5.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/nokogiri-1.5.0
     sqlite3 (1.3.5)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/sqlite3-1.3.5
     actionmailer (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/actionmailer-3.1.0
     therubyracer (0.9.9)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/therubyracer-0.9.9
     metaclass (bundled(0.0.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/metaclass-0.0.1
     launchy (2.0.5)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/launchy-2.0.5
     rack-cache (bundled(1.0.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rack-cache-1.0.3
     rdoc (bundled(3.12))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rdoc-3.12
     polyglot (0.3.3)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/polyglot-0.3.3
     factory_girl (bundled(2.4.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/factory_girl-2.4.0
     tilt (bundled(1.3.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/tilt-1.3.3
     uglifier (1.2.3)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/uglifier-1.2.3
     rb-fsevent (bundled(0.4.3.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rb-fsevent-0.4.3.1
     uglifier (bundled(1.2.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/uglifier-1.2.2
     treetop (1.4.10)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/treetop-1.4.10
     warden (bundled(1.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/warden-1.1.0
     coffee-script-source (1.2.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/coffee-script-source-1.2.0
     execjs (bundled(1.2.13))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/execjs-1.2.13
     guard-spork (bundled(0.5.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/guard-spork-0.5.1
     ffi (1.0.11)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/ffi-1.0.11
     rb-fsevent (bundled(0.9.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rb-fsevent-0.9.0
     ffi (bundled(1.0.11))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/ffi-1.0.11
     arel (bundled(2.2.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/arel-2.2.1
     guard (bundled(1.0.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/guard-1.0.0
     kaminari (0.13.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/kaminari-0.13.0
     validate_url (bundled(0.2.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/validate_url-0.2.0
     coffee-rails (3.1.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/coffee-rails-3.1.1
     actionmailer (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/actionmailer-3.1.0
     turn (bundled(0.9.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/turn-0.9.2
     capybara-webkit (bundled(0.9.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/capybara-webkit-0.9.0
     coffee-rails (bundled(3.1.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/coffee-rails-3.1.1
     rspec-mocks (2.7.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rspec-mocks-2.7.0
     childprocess (bundled(0.3.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/childprocess-0.3.1
     sprockets (bundled(2.0.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/sprockets-2.0.3
     execjs (1.3.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/execjs-1.3.0
     tilt (1.3.3)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/tilt-1.3.3
     rspec (bundled(2.7.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rspec-2.7.0
     spork (bundled(0.9.0.rc9))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/spork-0.9.0.rc9
     rspec-rails (2.7.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rspec-rails-2.7.0
     haml (bundled(3.1.4))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/haml-3.1.4
     rake (bundled(0.9.2.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rake-0.9.2.2
     tzinfo (0.3.31)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/tzinfo-0.3.31
     bcrypt-ruby (3.0.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/bcrypt-ruby-3.0.1
     pg (bundled(0.13.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/pg-0.13.2
     actionpack (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/actionpack-3.1.0
     devise (bundled(1.5.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/devise-1.5.2
     capybara-webkit (bundled(0.8.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/capybara-webkit-0.8.0
     database_cleaner (0.7.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/database_cleaner-0.7.1
     foreigner (bundled(1.1.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/foreigner-1.1.1
     addressable (bundled(2.2.6))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/addressable-2.2.6
     selenium-webdriver (bundled(2.19.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/selenium-webdriver-2.19.0
     rspec-core (bundled(2.7.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rspec-core-2.7.1
     simple_form (bundled(1.5.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/simple_form-1.5.2
     builder (bundled(3.0.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/builder-3.0.0
     erubis (bundled(2.7.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/erubis-2.7.0
     orm_adapter (bundled(0.0.6))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/orm_adapter-0.0.6
     validate_url (0.2.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/validate_url-0.2.0
     cocoon (1.0.15)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/cocoon-1.0.15
     addressable (2.2.6)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/addressable-2.2.6
     haml (3.1.4)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/haml-3.1.4
     sass (bundled(3.1.12))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/sass-3.1.12
     hike (1.2.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/hike-1.2.1
     libv8 (bundled(3.3.10.4))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/libv8-3.3.10.4-x86-linux
     coffee-script-source (bundled(1.2.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/coffee-script-source-1.2.0
     erubis (2.7.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/erubis-2.7.0
     spork (bundled(1.0.0rc2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/spork-1.0.0rc2
     factory_girl_rails (bundled(1.5.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/factory_girl_rails-1.5.0
     capybara (1.1.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/capybara-1.1.2
     tzinfo (bundled(0.3.31))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/tzinfo-0.3.31
     mocha (bundled(0.10.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/mocha-0.10.1
     jquery-rails (1.0.19)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/jquery-rails-1.0.19
     json (1.6.5)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/json-1.6.5
     guard (bundled(0.10.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/guard-0.10.0
     factory_girl (bundled(2.5.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/factory_girl-2.5.1
     factory_girl_rails (bundled(1.6.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/factory_girl_rails-1.6.0
     hike (bundled(1.2.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/hike-1.2.1
     rack-cache (1.0.3)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rack-cache-1.0.3
     activeresource (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/activeresource-3.1.0
     railties (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/railties-3.1.0
     libv8 (3.3.10.4)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/libv8-3.3.10.4-x86-linux
     rack-test (bundled(0.6.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rack-test-0.6.1
     sass-rails (bundled(3.1.5))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/sass-rails-3.1.5
     i18n (bundled(0.6.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/i18n-0.6.0
     multi_json (1.0.4)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/multi_json-1.0.4
     sqlite3 (bundled(1.3.5))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/sqlite3-1.3.5
     xpath (0.1.4)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/xpath-0.1.4
     coffee-script (bundled(2.2.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/coffee-script-2.2.0
     activemodel (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/activemodel-3.1.0
     turn (bundled(0.8.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/turn-0.8.3
     activesupport (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/activesupport-3.1.0
     will_paginate (bundled(3.0.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/will_paginate-3.0.2
     devise (1.5.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/devise-1.5.2
     ansi (bundled(1.4.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/ansi-1.4.2
     polyglot (bundled(0.3.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/polyglot-0.3.3
     json (bundled(1.6.5))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/json-1.6.5
     mail (2.3.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/mail-2.3.0
     client_side_validations (bundled(3.1.4))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/client_side_validations-3.1.4
     activerecord (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/activerecord-3.1.0
     rack-ssl (bundled(1.3.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rack-ssl-1.3.2
     guard-spork (bundled(0.5.2))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/guard-spork-0.5.2
     childprocess (bundled(0.3.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/childprocess-0.3.0
     rack-test (0.6.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/rack-test-0.6.1
     activerecord (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/activerecord-3.1.0
     arel (2.2.1)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/arel-2.2.1
     activesupport (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/activesupport-3.1.0
     rails (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/rails-3.1.0
     activeresource (bundled(3.1.0))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/activeresource-3.1.0
     launchy (bundled(2.0.5))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/launchy-2.0.5
     railties (3.1.0)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/railties-3.1.0
     ansi (1.4.2)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/ansi-1.4.2
     multi_json (bundled(1.0.4))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/multi_json-1.0.4
     thor (0.14.6)
         ~/.rvm/gems/ruby-1.9.3-p0@global/gems/thor-0.14.6
     database_cleaner (bundled(0.7.1))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/database_cleaner-0.7.1
     diff-lcs (bundled(1.1.3))
         ~/Documents/RoR/course_builder/CDPATH=/ruby/1.9.1/gems/diff-lcs-1.1.3

РЕДАКТИРОВАТЬ

Если я наберу rvm, я получу:

    = rvm

    * http://github.com/wayneeseguin/rvm

    == DESCRIPTION:

    RVM is the Ruby enVironment Manager (rvm).
    It manages Ruby application environments and switching between them.

    == Usage

      rvm [Flags] [Options] Action [Implementation[,Implementation[,...]]

    == Flags

      --default     - with 'rvm use X', sets the default ruby for new shells to X.
      --debug       - Toggle debug mode on for very verbose output.
      --trace       - Toggle trace mode on to see EVERYTHING rvm is doing.
      --force       - Force install, removes old install & source before install.

....

    == Contributions:

      Any and all contributions offered in any form, past present or future, to the
      RVM project are understood to be in complete agreement and acceptance with the
      Apache Licence v2.0.

    == INSTALL:

    See http://rvm.beginrescueend.com/rvm/install/

    or just use:

        bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)

    == LICENSE:

    Copyright (c) 2009-2011 Wayne E. Seguin

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

если я наберу ruby ​​-v

sam@ubuntu:~/Documents/RoR/course_builder$ ruby -v
ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-linux]
Источник

2 ответа

Решение

Я не верю, что ваш rvm настроен правильно. Для простоты, давайте начнем с начала, следуя инструкциям здесь:

http://beginrescueend.com/rvm/install/

Установите в командной строке.

user$ bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )

Откройте папку.bashrc в вашем домашнем каталоге.

user$ vim .bashrc

Отредактируйте и добавьте:

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function

Исходный файл.bashrc и закройте терминал

user$ source ~/.bashrc
user$ exit

Снова откройте терминал и проверьте, работает ли rvm.

user$ type rvm | head -1

Если он вернется

rvm is a function

Были хороши. Проверьте, есть ли у вас все предпосылки:

rvm requirements

Установите по мере необходимости. Выберите ваш любимый аромат рубина (кажется, что это 1.8.7, если так, следуйте точной команде или замените ее на ваш выбор).

rvm install 1.8.7

Когда это будет сделано,

rvm use 1.8.7 --default

Если это не сработало, пожалуйста, обновите сообщение, запустив

which ruby
Источник

Попробуйте запустить /bin/bash --login в командной строке, прежде чем делать какие-либо railsсвязанные вещи. Если это работает, делайте это снова в каждой новой командной строке, которую вы открываете.

Источник
Другие вопросы по тегам