User entity file

User.php

<?php
// src/AppBundle/Entity/User.php

namespace AppBundle\Entity;
use FOS\UserBundle\Model\User as BaseUser;
use Doctrine\ORM\Mapping as ORM;

/**
* @ORM\Entity
* @ORM\Table(name="fos_user")
*/

class User extends BaseUser

{
   /**
    * @ORM\Id
    * @ORM\Column(type="integer")
    * @ORM\GeneratedValue(strategy="AUTO")
    */

   protected $id;

   public function __construct()

   {
       parent::__construct();
   }
}