What you did
this is de 298 line in AclComponent:
$permKeys = $this->_getAcoKeys($this->Aro->Permission->schema());
What happened
after login in my cakephp 2 with acl i get this error
Fatal error: Call to a member function schema() on null in D:\ProgramFiles\xampp\htdocs\cgp\lib\Cake\Controller\Component\AclComponent.php on line 298
any help for this?