whats wrong

// AppController.php
public function initialize() {
        parent::initialize();
        $this->loadComponent('Flash');
        $this->loadComponent('Auth', [
            'loginRedirect' => ['controller' => 'Users', 'action' => 'profile'],
            'logoutRedirect' => ['controller' => 'Search', 'action' => 'index'],
            'loginAction' => ['controller' => 'Users','action' => 'login'],
        ]);
    }

// UsersController.php

 public function login() {
        /*$user = $this->Users->newEntity(['id' => 1]);
        $user = $this->Users->patchEntity($user, ['password' => '123456']);
        $this->Users->save($user);*/
        if ($this->request->is('post')) {
            $user = $this->Auth->identify();
            $this->set('req', $this->request->data);
            $this->set('user', $user);
        }
    }

// Model/Table/UsersTable.php

class UsersTable extends Table {
}

// Model/Entity/User.php

class User extends Entity {
    protected $_accessible = ['*' => true];

    protected function _setPassword($value) {
        return (new DefaultPasswordHasher)->hash($value);
    }
}