I was able to add a user.
In the application everything works fine except the "Home" and "Files" section. Seems like AttachmentFu has a problem somewhere.
Here is another stacktrace from the Files-Section:
NoMethodError in UploadsController#index
undefined method `paginate' for Upload:Class
RAILS_ROOT: /Users/Jan/Sites/war
Application Trace | Framework Trace | Full Trace
app/controllers/uploads_controller.rb:13:in `index'
vendor/rails/actionpack/lib/action_controller/base.rb:1162:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:1162:in `perform_action_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:580:in `call_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:573:in `perform_action_without_benchmark'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
vendor/rails/actionpack/lib/action_controller/rescue.rb:201:in `perform_action_without_caching'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:13:in `perform_action'
vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in `cache'
vendor/rails/activerecord/lib/active_record/query_cache.rb:8:in `cache'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:12:in `perform_action'
vendor/rails/actionpack/lib/action_controller/base.rb:529:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:529:in `process_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:569:in `process_without_session_management_support'
vendor/rails/actionpack/lib/action_controller/session_management.rb:130:in `process'
vendor/rails/actionpack/lib/action_controller/base.rb:389:in `process'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:149:in `handle_request'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:107:in `dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in `synchronize'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in `dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:120:in `dispatch_cgi'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:35:in `dispatch'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:76:in `process'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in `synchronize'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in `process'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:282:in `run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `each'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:128:in `run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/command.rb:212:in `run'
/usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
vendor/rails/activesupport/lib/active_support/dependencies.rb:502:in `load'
vendor/rails/activesupport/lib/active_support/dependencies.rb:502:in `load'
vendor/rails/activesupport/lib/active_support/dependencies.rb:354:in `new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:502:in `load'
vendor/rails/railties/lib/commands/servers/mongrel.rb:64
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:354:in `new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in `require'
vendor/rails/railties/lib/commands/server.rb:39
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
script/server:3