Rails 控制台不工作

Question

我在我的 Opensuse 上安装了 ruby​​ 2.0.0 和 rails 4.0.0，但是 rails 控制台不起作用。 我有这个错误信息：

/home/zellou_i/.rubies/ruby-2.0.0-p247/lib64/ruby/2.0.0/irb/completion.rb:9:in `require': cannot load such file -- readline (LoadError)
    from /home/zellou_i/.rubies/ruby-2.0.0-p247/lib64/ruby/2.0.0/irb/completion.rb:9:in `<top (required)>'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands/console.rb:3:in `require'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands/console.rb:3:in `<top (required)>'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:53:in `require'
    from /home/zellou_i/.gem/ruby/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:53:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

我不明白，我安装了 readline 但他无法加载它。

Answer 1

Ruby 需要使用 readline-support 进行编译。确保你安装了 libreadline6 及其开发头文件（debian 特定的包，适应 suse），然后重新编译你的 ruby​​。