PageSweeper not working since upgrading to 1.1.1

Hi, I upgraded from 1.0 to 1.1.1, now my cache sweepers acts up.
They worked perfectly before he upgrade, now I get strange errors.

I have an empty controller, it looks like this:

class PageElementsController < ApplicationController

cache_sweeper :element_sweeper

def element_container_show
render :inline=>""
end
end

The sweeper looks like this:

class ElementSweeper < ActionController::Caching::Sweeper
observe PageElement
end

When I call the action element_container_show, I get this error:

NoMethodError (You have a nil object when you didn’t expect it!
The error occured while evaluating nil.controller_name):
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/caching.rb:541:in
callback' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/caching.rb:534:inafter’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:227:in
around_filter' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:227:incall’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:401:in
call_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:394:ineach’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:394:in
call_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:389:inafter_action’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:369:in
perform_action_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/benchmarking.rb:69:inperform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/benchmarking.rb:69:in
measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/benchmarking.rb:69:inperform_action_without_rescue’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/rescue.rb:82:in
perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/base.rb:381:insend’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/base.rb:381:in
process_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/filters.rb:377:inprocess_without_session_management_support’
/usr/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/action_controller/session_management.rb:117:in
process' /usr/lib/ruby/gems/1.8/gems/rails-1.1.1/lib/dispatcher.rb:38:indispatch’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.1/lib/webrick_server.rb:115:in
handle_dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.1/lib/webrick_server.rb:81:inservice’
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/lib/ruby/1.8/webrick/httpserver.rb:65:inrun’
/usr/lib/ruby/1.8/webrick/server.rb:155:in start_thread' /usr/lib/ruby/1.8/webrick/server.rb:144:instart’
/usr/lib/ruby/1.8/webrick/server.rb:144:in start_thread' /usr/lib/ruby/1.8/webrick/server.rb:94:instart’
/usr/lib/ruby/1.8/webrick/server.rb:89:in each' /usr/lib/ruby/1.8/webrick/server.rb:89:instart’
/usr/lib/ruby/1.8/webrick/server.rb:79:in start' /usr/lib/ruby/1.8/webrick/server.rb:79:instart’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.1/lib/webrick_server.rb:67:in
dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.1/lib/commands/servers/webrick.rb:59 /usr/lib/ruby/1.8/rubygems/custom_require.rb:21:inrequire__’
/usr/lib/ruby/1.8/rubygems/custom_require.rb:21:in require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:inrequire’
/usr/lib/ruby/gems/1.8/gems/rails-1.1.1/lib/commands/server.rb:30
/usr/lib/ruby/1.8/rubygems/custom_require.rb:21:in require__' /usr/lib/ruby/1.8/rubygems/custom_require.rb:21:inrequire’
/usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:147:in
`require’
script/server:3

Can anybody reproduce this?

Martin

ok, this seems to be an engine problem. Moving this to the engines list