Unknown method "allow" - cakephp

Question

So I have this controller and method:
Contorller/UsersController.php
<?php
namespace App\Controller;
use App\Controller\AppController;
use Cake\Event\Event;
use Cake\Network\Exception\NotFoundException;
use Cake\ORM\TableRegistry;
/**
* Jobs Controller
*
* #property \App\Model\Table\JobsTable $Jobs
*/
class UsersController extends AppController
{
public function beforeFilter(Event $event)
{
parent::beforeFilter($event);
$this->Users->allow('register');
}
public function register()
{
//Get Categories
$getCategories = TableRegistry::get('Categories');
$categories = $getCategories->find('all');
$this->set('categories',$categories);
$this->set('title', 'Registration');
$user = $this->Users->newEntity();
if ($this->request->is('post')) {
$user = $this->Users->patchEntity($user, $this->request->data);
if ($this->Users->save($user)) {
$this->Flash->success(__('The user has been saved.'));
return $this->redirect(['action' => 'register']);
}
$this->Flash->error(__('Unable to add the user.'));
}
$this->set('user', $user);
}
}
Model/Table/UsersTable.php
<?php
namespace App\Model\Table;
use Cake\ORM\Table;
use Cake\Validation\Validator;
class UsersTable extends Table
{
public function validationDefault(Validator $validator)
{
return $validator
->notEmpty('first_name', 'A username is required')
->notEmpty('last_name', 'A username is required')
->notEmpty('email', 'A username is required')
->notEmpty('username', 'A username is required')
->notEmpty('password', 'A username is required')
->add('role', 'inList', [
'rule' => ['inList', ['Employer', 'Job Seeker']],
'message' => 'Please enter a valid role'
]);
}
}
?>
Template/Users/register.ctp:
<div class="users form">
<?php echo $this->Form->create($user); ?>
<fieldset>
<legend><?= __('Create New User'); ?></legend>
<?php
echo $this->Form->input('first_name');
echo $this->Form->input('last_name');
echo $this->Form->input('email',array('type'=>'email'));
echo $this->Form->input('username');
echo $this->Form->input('password',array('type'=>'password'));
echo $this->Form->input('confirm_password',array('type'=>'password'));
echo $this->Form->input('role',array(
'type' => 'select',
'options' => ['Employer'=>'Employer','Job Seeker'=>'Job Seeker'],
'empty' => 'Select Role'
));
?>
</fieldset>
<?= $this->Form->button(__('Submit')); ?>
<?= $this->Form->end() ?>
</div>
Entity/User.php:
<?php
namespace App\Model\Entity;
use Cake\Auth\DefaultPasswordHasher;
use Cake\ORM\Entity;
/**
* User Entity.
*/
class User extends Entity
{
/**
* Fields that can be mass assigned using newEntity() or patchEntity().
*
* #var array
*/
protected $_accessible = array(
'first_name' => true,
'last_name' => true,
'email' => true,
'username' => true,
'password' => true,
'role' => true,
'created' => true
);
protected function _setPassword($password)
{
return (new DefaultPasswordHasher)->hash($password);
}
}
So when I'm trying to access /users/register view, it gives me next error:
Unknown method "allow": $this->Users->allow('register');
But if I remove next method inside of my Users controller:
public function beforeFilter(Event $event)
{
parent::beforeFilter($event);
$this->Users->allow('register');
}
It works fine, but I guess it also must work with it as well. So what am I doing wrong or missing?