undefined method `param_posted?'

I upgraded an app to 2.01 and can't figure out why I am getting a

undefined method `param_posted?' for #<ControlPanelController:
0xb748ba18>

The controller should be inheriting this.

class ControlPanelController < ApplicationController

Yes that was my stupidity, I forgot that I added this in application
controller.

Thanks for reminding me.