Ruby，Rails控制台从错误开始……需要帮助

Question

> luke@Macbook-Pro~/Documents/workspace/RoR/rails_projects/sample4_app$ ruby -v

ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-darwin10.8.0]
luke@Macbook-Pro~/Documents/workspace/RoR/rails_projects/sample4_app$ rails -v

Rails 3.0.9

luke@Macbook-Pro~/Documents/workspace/RoR/rails_projects/sample4_app$ rails console


/Users/luke/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/i686-darwin10.8.0/readline.bundle: dlopen(/Users/luke/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/i686-darwin10.8.0/readline.bundle, 9): Symbol not found: _rl_basic_quote_characters (LoadError)
  Referenced from: /Users/luke/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/i686-darwin10.8.0/readline.bundle
  Expected in: flat namespace
 in /Users/luke/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/i686-darwin10.8.0/readline.bundle - /Users/luke/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/i686-darwin10.8.0/readline.bundle
    from /Users/luke/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/irb/completion.rb:10
    from /Users/luke/.rvm/gems/ruby-1.8.7-p352/gems/railties-3.0.9/lib/rails/commands/console.rb:3:in `require'
    from /Users/luke/.rvm/gems/ruby-1.8.7-p352/gems/railties-3.0.9/lib/rails/commands/console.rb:3
    from /Users/luke/.rvm/gems/ruby-1.8.7-p352/gems/railties-3.0.9/lib/rails/commands.rb:20:in `require'
    from /Users/luke/.rvm/gems/ruby-1.8.7-p352/gems/railties-3.0.9/lib/rails/commands.rb:20
    from script/rails:6:in `require'
    from script/rails:6

Ruby is okay, Rails is okay, but "rails console" Need help Thanks

Answer 1

Looks like you're missing a file in your ruby build. Did you just recently update to OS X 10.7? You might need a fresh reinstall of Rails. As always this can be done with:

sudo gem install rails

Sorry I can't be of more help.

Answer 2

Suggest using bundler to manage the gems in your project.

If you put

 source 'http://rubygems.org'

 gem 'rails', '3.0.9'

in your Gemfile (see also http://gembundler.com/ )

Then

 bundle install

will install the correct version of rails and

 bundle exec rails console 

will start up your console. bundle exec rails server will start the server, etc.

You might also want to consider using rvm to install and manage your rubies if you aren't already -- http://beginrescueend.com/