Ruby 1.9.2和Rails 3无法打开Rails控制台

Question

[gkaykck@main myApplication]$ rails console
/usr/local/lib/ruby/1.9.1/irb/completion.rb:9:in `require': no such file to load -- readline (LoadError)
    from /usr/local/lib/ruby/1.9.1/irb/completion.rb:9:in `<top (required)>'
    from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands/console.rb:3:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands/console.rb:3:in `<top (required)>'
    from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:20:in `require'
    from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:20:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我已经在ruby 1.9.2p136上安装了rails 3，我想是可以的。但是我无法启动Rails控制台，它给了我我复制的错误。该应用程序在ruby
1.8.7上运行良好，并且我从未见过这样的错误。

有什么想法吗？

Answer 1

显然，ubuntu和ruby并不总是像应该的那样捕获依赖项。

在第一个Google匹配中（是的，我在检查第一个结果之前单击了＃2处的堆栈溢出）。

导航到Ruby源，然后输入：

sudo apt-get install libreadline5-dev
cd ext/readline
ruby extconf.rb
make
sudo make install

因此，如果您在其他发行版上，请确保以某种方式安装readline（源代码/程序包），然后从源代码在extconf上运行make /
install。我尝试了gkaykck的建议，但是在我的系统上已经没有readline了。

$ ruby extconf.rb
checking for tgetnum() in -lncurses... no
checking for tgetnum() in -ltermcap... no
checking for tgetnum() in -lcurses... no
checking for readline/readline.h... no
checking for editline/readline.h... no