无法打开rails控制台

Question

无法打开rails控制台，抛出以下错误

$ rails c

/home/#/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/irb/completion.rb:9:in `require':   cannot load such file -- readline (LoadError)
from /home/#/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/irb/completion.rb:9:in `<top (required)>'
from /home/#/.rvm/gems/ruby-2.0.0-p0@aer-ui/gems/railties-3.2.13/lib/rails/commands/console.rb:3:in `require'
from /home/#/.rvm/gems/ruby-2.0.0-p0@aer-ui/gems/railties-3.2.13/lib/rails/commands/console.rb:3:in `<top (required)>'
from /home/#/.rvm/gems/ruby-2.0.0-p0@aer-ui/gems/railties-3.2.13/lib/rails/commands.rb:38:in `require'
from /home/#/.rvm/gems/ruby-2.0.0-p0@aer-ui/gems/railties-3.2.13/lib/rails/commands.rb:38:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

Answer 1

编译Ruby时需要安装readline库。

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fixing-readline-for-the-ruby-on-rails-console