Ruby升級后no such file to load -- readline解決辦法，大家都知道嗎？當我們都了解清楚后，在工作中遇到這些問題的時候，可以反應迅速，下面就跟著武林技術頻道小編的步伐來學習一下吧！
/usr/local/lib/
ruby/1.8/irb/completion.rb:10:in `require': no such file to load -- readline (LoadError)?
??????? from /usr/local/lib/ruby/1.8/irb/completion.rb:10?
??????? from /usr/local/lib/ruby/1.8/irb/init.rb:252:in `require'?
??????? from /usr/local/lib/ruby/1.8/irb/init.rb:252:in `load_modules'?
??????? from /usr/local/lib/ruby/1.8/irb/init.rb:250:in `each'?
??????? from /usr/local/lib/ruby/1.8/irb/init.rb:250:in `load_modules'?
??????? from /usr/local/lib/ruby/1.8/irb/init.rb:21:in `setup'?
??????? from /usr/local/lib/ruby/1.8/irb.rb:54:in `start'?
??????? from /usr/local/bin/irb:13?
