Redmine

Hello,

I try setting repository (SVN)
but, click the button does not respond.
all input information(SVN) is correct.

so I check to log file. then I found next info.

Processing RepositoriesController#edit (for 172.16.18.20 at 2011-07-27 09:53:43) [POST]
  Parameters: {"repository"=>{"url"=>"", "login"=>""}, "commit"=>"留뚮뱾湲?, "action"=>"edit", "authenticity_token"=>"QqGtGgEUrotdxglJk8nsKKbwOZx4ZwRB6j0742jpInc=", "id"=>"appg-edu", "controller"=>"repositories", "ignore"=>"", "repository_scm"=>"Subversion"}

NameError (undefined local variable or method `extra_info' for #<Repository::Subversion:0x4da9a54>):
  app/models/repository.rb:77:in `merge_extra_info'
  app/controllers/repositories_controller.rb:55:in `edit'
  config/initializers/mongrel_cluster_with_rails_211_fix.rb:62:in `dispatch_cgi'

Rendering /Applications/redmine-1.2.1-0/apps/redmine/public/500.html (500 Internal Server Error)

What should I do?
Please help.

Install Info.

OS : MAC OS X Server Snow leopard.
Redmine Version : 1.2.1 (bitnami_redmine)
Ruby Version : 1.8.7