# rails -v Rails 2.2.2 # ruby -v ruby 1.8.6 (2007-09-24 patchlevel 111) [i686-darwin9.2.2] # ruby script/console Loading development environment (Rails 2.2.2) >> Jpmobile::VERSION::STRING => "0.0.4"こういう構成で、$RAILS_ROOT/vender/plugin…