No Such File to load — readline (LoadError)

If you get following error while extecuting  ruby script/console

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/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

To solve this issue , you need to install some libraries.

1 2	sudo apt-get install libncurses5-dev sudo apt-get install libreadline5-dev

Then goto ruby source folder and ext/readline folder

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cd  <RUBY SOURCE FOLDER>/ext/readline ruby extconf.rb make sudo make install