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Ruby script/console torna l'errore "no such file to load -- readline (LoadError)"

ruby script/console torna il seguente errore in Ubuntu:

/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

Soluzione
apt-get install libreadline-ruby
apt-get install libreadline-dev

dalla directory dei sorgenti di ruby:

cd ext/readline/
ruby extconf.rb
make
sudo make install

 

Link:

http://blog.guitarati.com/2008/01/solving-ruby-scriptconsole-no-such-file.html