RailRoad无法正常工作。 给我的问题，即/railroad-0.5.0/lib/railroad/app_diagram.rb:54:in,disable_stdout’：未初始化的常数

这是各种输出

railroad -M | dot -Tsvg > models.svg /Users/me/.rvm/gems/ruby-1.9.2-p290/gems/railroad-0.5.0/lib/railroad/app_diagram.rb:54:in `disable_stdout': uninitialized constant AppDiagram::PLATFORM (NameError) from /Users/me/.rvm/gems/ruby-1.9.2-p290/gems/railroad-0.5.0/lib/railroad/app_diagram.rb:72:in `load_environment' from /Users/me/.rvm/gems/ruby-1.9.2-p290/gems/railroad-0.5.0/lib/railroad/app_diagram.rb:18:in `initialize' from /Users/me/.rvm/gems/ruby-1.9.2-p290/gems/railroad-0.5.0/lib/railroad/models_diagram.rb:14:in `initialize' from /Users/me/.rvm/gems/ruby-1.9.2-p290/gems/railroad-0.5.0/bin/railroad:36:in `new' from /Users/me/.rvm/gems/ruby-1.9.2-p290/gems/railroad-0.5.0/bin/railroad:36:in `' from /Users/me/.rvm/gems/ruby-1.9.2-p290/bin/railroad:19:in `load' from /Users/me/.rvm/gems/ruby-1.9.2-p290/bin/railroad:19:in `' 

版本

 me$ ruby -v ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-darwin11.1.0] me$ rvm -v rvm 1.8.0 by Wayne E. Seguin ([e-mail]) [http://sofzh.miximages.com/ruby-on-rails/ 



	







 
	
Answer 1
		      	
 铁路不使用ruby 1.9.2和rails 3.0.10。  Railroady是先进的维护版本.. 


Answer 2
		      	
 在第54行编辑/Users/me/.rvm/gems/ruby-1.9.2-p290/gems/railroad-0.5.0/lib/railroad/app_diagram.rb并将PLATFORM更改为RUBY_PLATFORM。 
 请参阅： http ： //rubyforge.org/tracker/index.php？func = entertail＆aid = 26418＆group_id = 3383 &atid = 12998