# Rails 2.2 sweeping error

**URL:** <https://www.ruby-forum.com/t/rails-2-2-sweeping-error/156201>\
**Category:** Rails\
**Created:** [December 22, 2008, 6:40pm UTC](https://www.ruby-forum.com/t/rails-2-2-sweeping-error/156201 "2008-12-22T18:40:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ADADAD](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/85e7bf/32.png) [@ADADAD](https://www.ruby-forum.com/u/ADADAD)\
**Post date:** [December 22, 2008, 6:40pm UTC](https://www.ruby-forum.com/t/rails-2-2-sweeping-error/156201/1 "2008-12-22T18:40:18Z")

</div>

It appears we are seeing an error when we enable  
config.action\_controller.perform\_caching with our Rails 2.2 upgrade. My  
initial hunch is this is related to acts\_as\_audited plugin but not sure.

has anyone encountered this error and have a fix ?

Rails 2.2.2, Jruby 1.1.6, Tomcat 5.5.27

undefined method `controller_name' for nil:NilClass /usr/local/tomcat/webapps/myapp/WEB-INF/gems/gems/actionpack-2.2.2/lib/action_controller/caching/sweeping.rb:83:in`callback’

Thanks  
Adam