ReachingFarr

require 'Qt4'module CattleLog        class Gui < Qt::Widget                include Singleton                @main_window                def initialize(parent = nil)                        super                        @main_window = Qt::MainWindow.new                end        endend./lib/gui.rb:5:in `const_missing': uninitialized constant CattleLog::Gui::Singleton (NameError)        from ./lib/gui.rb:5        from ./cattle_log.rb:6:in `require'        from ./cattle_log.rb:6