heroku 创建时出错，rails 2.3.8

Question

我在 Windows XP 上运行 Rails 2.3.8，并第一次尝试在 Heroku 上部署。开发中一切正常，但是当我执行 heroku create 时，我得到以下信息，有什么想法吗？谢谢。

C:/Ruby/lib/ruby/gems/1.8/gems/rest-client-1.6.1/lib/restclient/abstract_response.rb:50: warning: parenthesize argument(s) for future version
C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/lib/heroku/command/base.rb:130:in `extract_description': wrong argument type Symbol (expected Proc) (TypeError)
        from C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/lib/heroku/command/base.rb:126:in `extract_summary'
        from C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/lib/heroku/command/base.rb:64:in `method_added'
        from C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/lib/heroku/command/addons.rb:14
        from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
        from C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
        from C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/lib/heroku/command.rb:17:in `load'
        from C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/lib/heroku/command.rb:16:in `each'
        from C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/lib/heroku/command.rb:16:in `load'
        from C:/Ruby/lib/ruby/gems/1.8/gems/heroku-2.1.4/bin/heroku:13
        from C:/Ruby/bin/heroku:19:in `load'
        from C:/Ruby/bin/heroku:19