rails 3 rc1 and yUMLmeRails uninitialized constant AppDiagram::PLATFORM

[bitcoiners]

Hello,
I am gettinng an error when trying to use yUMLmeRails with latest Rails 3 rc. I have Shoes installed.
rake yUMLmeRails:show --trace
(in /home/slava/dev/projects/statitnow)
** Invoke yUMLmeRails:show (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute yUMLmeRails:show
rake aborted!
uninitialized constant AppDiagram::PLATFORM
/home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/railroad/app_diagram.rb:59:in disable_stdout' /home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/railroad/app_diagram.rb:77:inload_environment'
/home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/railroad/app_diagram.rb:20:in initialize' /home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/railroad/models_diagram.rb:14:ininitialize'
/home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/yUMLmeRails.rb:38:in new' /home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/yUMLmeRails.rb:38:ingenerate_diagram'
/home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/tasks/yUMLmeRails.rake:8:in block in generate_diagram' /home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/tasks/yUMLmeRails.rake:7:inopen'
/home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/tasks/yUMLmeRails.rake:7:in generate_diagram' /home/slava/dev/projects/statitnow/vendor/plugins/yUMLmeRails/lib/tasks/yUMLmeRails.rake:16:inblock (2 levels) in <top (required)>'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:636:in call' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:636:inblock in execute'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:631:in each' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:631:inexecute'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:597:in block in invoke_with_call_chain' /home/slava/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/monitor.rb:201:inmon_synchronize'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:590:in invoke_with_call_chain' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:583:ininvoke'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2051:in invoke_task' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2029:inblock (2 levels) in top_level'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2029:in each' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2029:inblock in top_level'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2068:in standard_exception_handling' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2023:intop_level'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2001:in block in run' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:2068:instandard_exception_handling'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/lib/rake.rb:1998:in run' /home/slava/.rvm/gems/ruby-1.9.2-rc2/gems/rake-0.8.7/bin/rake:31:in<top (required)>'
/home/slava/.rvm/gems/ruby-1.9.2-rc2/bin/rake:19:in load' /home/slava/.rvm/gems/ruby-1.9.2-rc2/bin/rake:19:in

'

[tute]

Hi! I do also have this error. How may we fix this?
Regards,
Eugenio.

[tute]

Well, works with this patch:
http://gist.github.com/653662

Kind regards.