Redmine

Hello, I just installed Ubuntu today because I was having some troubles with using Ruby and Redmine in Windows.
Anyway, I've gotten to the point of where I rake my database and I get the error:
undefined method `autoload_paths' for #<Rails::Configuration:0x7fa716b599f0>

I have googled myself senseless trying to solve this, but to no avail. I found someone on the forum with a similar problem, but not exactly the same and the solution to change
config.autoload_paths += %W( #{RAILS_ROOT}/app/sweepers )
to
config.load_paths += %W( #{RAILS_ROOT}/app/sweepers )

didn't work for me. It just caused a different problem. I would be very grateful for any suggestions to solve this.
My versions are:
Ruby 1.8.7

• LOCAL GEMS ***

actionmailer (2.3.11, 2.3.5)
actionpack (2.3.11, 2.3.5)
activerecord (2.3.11, 2.3.5)
activeresource (2.3.11, 2.3.5)
activesupport (2.3.11, 2.3.5)
fastthread (1.0.7)
i18n (0.4.2)
mysql (2.8.1)
rack (1.1.0, 1.0.1)
rails (2.3.11, 2.3.5)
rake (0.8.7)

and the latest trunk of Redmine.

I have tried everything I can come up with and I my fellow project compatriots can't seem to find a solution either.

midgard@ubuntu:/var/www/redmine$ rake db:migrate --trace
(in /var/www/redmine)

• Invoke db:migrate (first_time)
• Invoke environment (first_time)
• Execute environment
  rake aborted!
  undefined method `autoload_paths' for #<Rails::Configuration:0x7fef58a46150>
  /var/www/redmine/config/environment.rb:27
  /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:111:in `run'
  /var/www/redmine/config/environment.rb:20
  /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
  /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
  /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
  /usr/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/tasks/misc.rake:4
  /usr/lib/ruby/1.8/rake.rb:636:in `call'
  /usr/lib/ruby/1.8/rake.rb:636:in `execute'
  /usr/lib/ruby/1.8/rake.rb:631:in `each'
  /usr/lib/ruby/1.8/rake.rb:631:in `execute'
  /usr/lib/ruby/1.8/rake.rb:597:in `invoke_with_call_chain'
  /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
  /usr/lib/ruby/1.8/rake.rb:590:in `invoke_with_call_chain'
  /usr/lib/ruby/1.8/rake.rb:607:in `invoke_prerequisites'
  /usr/lib/ruby/1.8/rake.rb:604:in `each'
  /usr/lib/ruby/1.8/rake.rb:604:in `invoke_prerequisites'
  /usr/lib/ruby/1.8/rake.rb:596:in `invoke_with_call_chain'
  /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
  /usr/lib/ruby/1.8/rake.rb:590:in `invoke_with_call_chain'
  /usr/lib/ruby/1.8/rake.rb:583:in `invoke'
  /usr/lib/ruby/1.8/rake.rb:2051:in `invoke_task'
  /usr/lib/ruby/1.8/rake.rb:2029:in `top_level'
  /usr/lib/ruby/1.8/rake.rb:2029:in `each'
  /usr/lib/ruby/1.8/rake.rb:2029:in `top_level'
  /usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
  /usr/lib/ruby/1.8/rake.rb:2023:in `top_level'
  /usr/lib/ruby/1.8/rake.rb:2001:in `run'
  /usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
  /usr/lib/ruby/1.8/rake.rb:1998:in `run'
  /usr/bin/rake:28