Rails3とPassengerで (http://github.com/paneq/calendar_date_select.git (at rails3test) is not checked out. Please run `bundle install` (Bundler::GitError)) みたいなエラーが出たら Rails.rootで bundle install --deployment をやって vendor/bundle にいろいろ詰め込んで Rails.root/.bundle/config に ****************************** --- BUNDLE_PATH: vendor/bundle ****************************** と書く