Отсутствуют эти необходимые драгоценные камни: дворняга (но установлен)

Я пытаюсь установить новые плагины для Redmine 1.4.4. Скопировав папку и запустив rake db: migrate_plugins RAILS_ENV = production грабли написали:

Missing these required gems:
  mongrel  >= 0

You're running:
  ruby 1.8.7.370 at C:/Ruby187/bin/ruby.exe
  rubygems 1.8.24 at C:/Ruby187/lib/ruby/gems/1.8, C:/Users/adm/.gem/ruby/1.8

Run `rake gems:install` to install the missing gems.

rake gems: установить --trace:

rake aborted!
uninitialized constant Mongrel
** Invoke gems:install (first_time)
** Invoke gems:base (first_time)
** Execute gems:base
** Invoke environment (first_time)
** Execute environment
rake aborted!
uninitialized constant Mongrel
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:469:in `load_missing_constant'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:106:in `const_missing'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:118:in `const_missing'
C:/Ruby187/redmine-1.4.4/config/mongrel.rb:20
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:547:in `new_constants_in'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
C:/Ruby187/redmine-1.4.4/config/environment.rb:62
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:547:in `new_constants_in'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.14/lib/active_support/dependencies.rb:182:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/tasks/misc.rake:4
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `execute'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/tasks/gems.rake:17
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `execute'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:176:in `invoke_prerequisites'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `each'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:174:in `invoke_prerequisites'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:157:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `top_level'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `top_level'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `run'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.9.2.2/bin/rake:33
C:/Ruby187/bin/rake:23:in `load'
C:/Ruby187/bin/rake:23
Tasks: TOP => environment

список драгоценных камней показывает, что установлен mongrel (1.1.5 x86-mingw32). Все работает на сервере Windows 2008 x64. Редмайн работает в сервисе mongrel win.