I've resolved this issue. I was using the giraffesoft-resource_controller gem. This gem was somehow conflicting with both the auto_complete plugin and the in_place_editing plugin. As soon as I removed my reference to this gem in the environment.rb file and changed my controllers so they no longer use resource controller everything worked. I hope this will help someone in the same situation.
I'm having an issue with the auto_complete plugin when running on Rails version 2.3.2 in production mode. The error I'm getting is that the "text_field_with_auto_complete" method is not found. This method is located in the plugin and is being exposed to the application via the init.rb in the plugin (ActionController::Base.helper AutoCompleteMacrosHelper).
It seems that the helper is not getting loaded properly when in production mode. It works fine in development mode. However, if I change config.cache_classes = true in the development.rb file I experience the same issue.
Does anyone have any idea what's going on here and how I would go about fixing it?
Thank you in advance!