On this server I already installed it in the gemsets for Ruby 1.8.7 and Rails 2.3.11 without any problem ... but trying (many times .. ) to install in Ruby 1.9.2 (Rails 3.0.5) raises an error ... It's not related to the gem itself as the gem doesn(t build any native extension .. but to one dependency... I don't know where to start looking for ...
here is the log message : rubyrails:~ (ruby-1.9.2@rails3)$ gem install capybara Fetching: nokogiri-1.4.4.gem (100%) Building native extensions. This could take a while... Fetching: culerity-0.2.15.gem (100%) Fetching: celerity-0.8.9.gem (100%) Fetching: json_pure-1.5.1.gem (100%) Fetching: rubyzip-0.9.4.gem (100%) Fetching: ffi-1.0.7.gem (100%) Building native extensions. This could take a while... ERROR: Error installing capybara: ERROR: Failed to build gem native extension.
rake RUBYARCHDIR=/home/kadoudal/.rvm/gems/ruby-1.9.2- p180@rails3/gems/ffi-1.0.7/lib RUBYLIBDIR=/home/kadoudal/.rvm/gems/ ruby-1.9.2-p180@rails3/gems/ffi-1.0.7/lib /home/kadoudal/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/ rubygems.rb:388:in `bin_path': can't find gem rake ([">= 0"]) with executable rake (Gem::GemNotFoundException) from /home/kadoudal/.rvm/gems/ruby-1.9.2-p180/bin/rake:19:in `<main>'
need some clue to try solving this issue ...