Redmine

When trying to filter the list of users in the Administration>Groups>"GroupXYZ">Users Tab (via giving some input to the textfield) I get a HTTP 500 (Internal Server Error) in the users list.

The Error trace from the production log is the following: ===========================================================================
Processing GroupsController#autocomplete_for_user (for 134.96.156.201 at 2010-05-04 10:45:12) [POST]
Parameters: {"action"=>"autocomplete_for_user", "authenticity_token"=>"P1p1MaNLcJMckqSU0VvOfogM1ZBxwr6VX28dtPQpUYU=", "id"=>"14", "q"=>"clem", "controller"=>"groups"}

NoMethodError (undefined method `call' for nil:NilClass):
app/controllers/groups_controller.rb:135:in `autocomplete_for_user'
passenger (2.2.11) lib/phusion_passenger/rack/request_handler.rb:92:in `process_request'
passenger (2.2.11) lib/phusion_passenger/abstract_request_handler.rb:207:in `main_loop'
passenger (2.2.11) lib/phusion_passenger/railz/application_spawner.rb:418:in `start_request_handler'
passenger (2.2.11) lib/phusion_passenger/railz/application_spawner.rb:358:in `handle_spawn_application'
passenger (2.2.11) lib/phusion_passenger/utils.rb:184:in `safe_fork'
passenger (2.2.11) lib/phusion_passenger/railz/application_spawner.rb:354:in `handle_spawn_application'
passenger (2.2.11) lib/phusion_passenger/abstract_server.rb:352:in `__send__'
passenger (2.2.11) lib/phusion_passenger/abstract_server.rb:352:in `main_loop'
passenger (2.2.11) lib/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
passenger (2.2.11) lib/phusion_passenger/abstract_server.rb:163:in `start'
passenger (2.2.11) lib/phusion_passenger/railz/application_spawner.rb:213:in `start'
passenger (2.2.11) lib/phusion_passenger/spawn_manager.rb:262:in `spawn_rails_application'
passenger (2.2.11) lib/phusion_passenger/abstract_server_collection.rb:126:in `lookup_or_add'
passenger (2.2.11) lib/phusion_passenger/spawn_manager.rb:256:in `spawn_rails_application'
passenger (2.2.11) lib/phusion_passenger/abstract_server_collection.rb:80:in `synchronize'
passenger (2.2.11) lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
passenger (2.2.11) lib/phusion_passenger/spawn_manager.rb:255:in `spawn_rails_application'
passenger (2.2.11) lib/phusion_passenger/spawn_manager.rb:154:in `spawn_application'
passenger (2.2.11) lib/phusion_passenger/spawn_manager.rb:287:in `handle_spawn_application'
passenger (2.2.11) lib/phusion_passenger/abstract_server.rb:352:in `__send__'
passenger (2.2.11) lib/phusion_passenger/abstract_server.rb:352:in `main_loop'
passenger (2.2.11) lib/phusion_passenger/abstract_server.rb:196:in `start_synchronously'

Rendering /opt/redmine-0.9.3/public/500.html (500 Internal Server Error) ===========================================================================

My version information is as follows: ===========================================================================
- Gentoo Linux System (x86_64)
- ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]
- rails 2.3.5
- mysql Ver 14.14 Distrib 5.1.44, for pc-linux-gnu (x86_64) using readline 5.1 ===========================================================================