Activerecord error

Could anyone please tell me what this error means, and how to fix it?
Thanks.

2 error(s) on assignment of multiparameter attributes

/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/base.rb:1697:in
execute_callstack_for_multiparameter_attributes' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/base.rb:1677:inassign_multiparameter_attributes’
/usr/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/base.rb:1339:in
attributes=' /usr/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/base.rb:1266:inupdate_attributes’
./script/…/config/…/app/controllers/minutes_controller.rb:52:in
update' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/base.rb:853:inperform_action_without_filters’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/filters.rb:332:in
perform_action_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/benchmarking.rb:69:inperform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/benchmarking.rb:69:in
measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/benchmarking.rb:69:inperform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/rescue.rb:82:in
perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/base.rb:369:inprocess_without_session_management_support’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session_management.rb:116:in
process' ./script/../config/../app/controllers/application.rb:17:inprocess’
./script/…/config/…/app/controllers/application.rb:16:in catch' ./script/../config/../app/controllers/application.rb:16:inprocess’
/usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/dispatcher.rb:38:in
dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/webrick_server.rb:117:inhandle_dispatch’
/usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/webrick_server.rb:83:in
service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:inservice’
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/lib/ruby/1.8/webrick/server.rb:172:instart_thread’
/usr/lib/ruby/1.8/webrick/server.rb:161:in start' /usr/lib/ruby/1.8/webrick/server.rb:161:instart_thread’
/usr/lib/ruby/1.8/webrick/server.rb:95:in start' /usr/lib/ruby/1.8/webrick/server.rb:92:ineach’
/usr/lib/ruby/1.8/webrick/server.rb:92:in start' /usr/lib/ruby/1.8/webrick/server.rb:82:instart’
/usr/lib/ruby/1.8/webrick/server.rb:82:in start' /usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/webrick_server.rb:69:indispatch’
/usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/commands/servers/webrick.rb:59
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:21:in require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:214:inrequire’
/usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/commands/server.rb:28
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:21:in require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:214:inrequire’
./script/server:3
-e:3

Request

Parameters: {“commit”=>“Edit”, “minute”=>{“info”=>“Testing”,
“month(2i)”=>“11”, “year(1i)”=>“2005”}, “id”=>“60”}