Desplegando proyecto basado en Ruby. Ejecutamos
# bundle install
y nos da el error
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/local/rvm/rubies/ruby-1.9.3-p362/bin/ruby extconf.rb checking for libxml/parser.h... no ----- libxml2 is missing. please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
El problema era que faltaban paquetes.
# apt-get install libxslt-dev libxml2-dev