Rails - Feb 2006 - ArgumentError in <controller not set>#<action not set> ??

Has anyone ever seen this before? It doesn''t happen n a predictable 
manner, and can occur via different controllers. Someone else posted 
about this back in December but no one replied. I''m completely stumped!

Here is the text, thanks.

  ArgumentError in <controller not set>#<action not set>

undefined class/module CustomerDomain

RAILS_ROOT: script/../config/..
Application Trace | Framework Trace | Full Trace

/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session/active_record_store.rb:84:in
`load''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session/active_record_store.rb:84:in
`unmarshal''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session/active_record_store.rb:122:in
`data''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session/active_record_store.rb:129:in
`marshal_data!''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/callbacks.rb:333:in
`callback''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/callbacks.rb:330:in
`callback''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/callbacks.rb:248:in
`create_or_update''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/base.rb:1226:in
`save_without_validation''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/validations.rb:698:in
`save_without_transactions''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/transactions.rb:126:in
`save''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/connection_adapters/abstract/database_statements.rb:51:in
`transaction''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/transactions.rb:91:in
`transaction''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/transactions.rb:118:in
`transaction''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/transactions.rb:126:in
`save''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session/active_record_store.rb:300:in
`update''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/base.rb:831:in
`silence''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session/active_record_store.rb:300:in
`update''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/session/active_record_store.rb:307:in
`close''
/usr/local/lib/ruby/1.8/cgi/session.rb:166:in `callback''
/usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/base.rb:833:in
`hash_value''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:108:in
`default_check''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:124:in
`write_dropout_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:117:in
`write_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:207:in
`go''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:216:in
`continue''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:140:in
`write_continue_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:145:in
`add_segments_to''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:203:in
`add_segment''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:145:in
`add_segments_to''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:140:in
`write_continue_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:46:in
`method_missing''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:19:in
`indent''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:46:in
`method_missing''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:138:in
`write_continue_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:118:in
`write_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:207:in
`go''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:216:in
`continue''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:140:in
`write_continue_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:188:in
`add_segments_to''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:203:in
`add_segment''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:188:in
`add_segments_to''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:140:in
`write_continue_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:46:in
`method_missing''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:19:in
`indent''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:46:in
`method_missing''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:138:in
`write_continue_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:118:in
`write_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:207:in
`go''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:301:in
`write_generation''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/routing.rb:509:in
`generation_code_for''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:46:in
`method_missing''
/usr/local/lib/ruby/gems/1.8/gems/actionpack-1.11.2/lib/action_controller/code_generation.rb:19:i

a non y mouse wrote:
> Has anyone ever seen this before? It doesn''t happen n a
predictable
> manner, and can occur via different controllers. Someone else posted 
> about this back in December but no one replied. I''m completely
stumped!
> 
> Here is the text, thanks.
> 
>  ArgumentError in <controller not set>#<action not set>
> 
> undefined class/module CustomerDomain
> 
> RAILS_ROOT: script/../config/..
> Application Trace | Framework Trace | Full Trace
OK, new development in this issue: It works fine under Apache (2.2.0, 
mod_fcgid). Seems to be related to WEBrick.