Redmine

Hello all:

I'm installing redmine for the first time on the operating system given in the subject. Here's my database.yml:

production:
adapter: sqlite3
dbfile: db/prod.db

My rails version: Rails 2.2.2
My ruby version: ruby 1.8.6 (2007-09-24 patchlevel 111) [x86_64-linux]
My installed gems:

actionmailer (2.2.2)
actionpack (2.2.2)
activerecord (2.2.2)
activeresource (2.2.2)
activesupport (2.2.2)
postgres-pr (0.5.1)
rails (2.2.2)
rake (0.8.3)
rubygems-update (1.3.1)

Specifically, the creation of the database in step four of the installation manual fails. The full output will follow. Any ideas?

$ rake --trace db:migrate RAILS_ENV="production"
(in /home/blt/sources/redmine-0.8)

• Invoke db:migrate (first_time)
• Invoke environment (first_time)
• Execute environment
  rake aborted!
  undefined method `default_error_messages=' for ActiveRecord::Errors:Class
  /home/blt/sources/redmine-0.8/config/initializers/10-patches.rb:2
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:144:in `load_without_new_constant_marking'
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:144:in `load'
  /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:550:in `load_application_initializers'
  /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:549:in `each'
  /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:549:in `load_application_initializers'
  /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:167:in `process'
  /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:112:in `send'
  /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/initializer.rb:112:in `run'
  /home/blt/sources/redmine-0.8/config/environment.rb:20
  /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
  /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'
  /usr/lib/ruby/gems/1.8/gems/rails-2.2.2/lib/tasks/misc.rake:3
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `call'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `execute'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `each'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `execute'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:in `invoke_with_call_chain'
  /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588:in `invoke_prerequisites'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `each'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `invoke_prerequisites'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in `invoke_with_call_chain'
  /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `invoke_with_call_chain'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in `invoke'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2019:in `invoke_task'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `top_level'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `each'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `top_level'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `standard_exception_handling'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1991:in `top_level'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1970:in `run'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `standard_exception_handling'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1967:in `run'
  /usr/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:31
  /usr/bin/rake:19:in `load'
  /usr/bin/rake:19