map.resources :abcxyz_types, :active_scaffold => true
map.resources :abcxyzs, :active_scaffold => true
You need to tell config.routes.rb that you're using active scaffold.
ActiveRecord::RecordNotFound in AssignmentsController#show
Couldn't find Assignment with ID=edit_associated
/var/lib/gems/1.8/gems/activerecord-2.3.3/lib/active_record/base.rb:1586:in `find_one'
/var/lib/gems/1.8/gems/activerecord-2.3.3/lib/active_record/base.rb:1569:in `find_from_ids'
/var/lib/gems/1.8/gems/activerecord-2.3.3/lib/active_record/base.rb:616:in `find'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/base.rb:1327:in `send'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/base.rb:1327:in `perform_action_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/filters.rb:617:in `call_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/var/lib/gems/1.8/gems/activesupport-2.3.3/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/var/lib/gems/1.8/gems/activesupport-2.3.3/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/rescue.rb:160:in `perform_action_without_flash'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/flash.rb:146:in `perform_action'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/base.rb:527:in `send'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/base.rb:527:in `process_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/filters.rb:606:in `process'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/base.rb:391:in `process'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/base.rb:386:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.3/lib/action_controller/routing/route_set.rb:434:in `call'
[Edit, later on, in the evening]
As it turns out, the official website isn't as official as the wiki. Go figure.
http://wiki.github.com/activescaffold/active_scaffold/getting-started