FOSUserBundle MappingException

Question

I was deploying a system with Symfony2, FOSUserBundle & Fr3dLdapBundle, but I got the following problem:

MappingException: Class "XXX\Shared\XXXUserBundle\Entity\User" sub class of "FOS\UserBundle\Model\User" is not a valid entity or mapped super class.

Here is explained that eAccelerator is not compatible, but I don't have it:

PHP 5.3.3 (cli) (built: Feb 22 2013 02:51:11) 
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
with Xdebug v2.2.1, Copyright (c) 2002-2012, by Derick Rethans

Also tried in a much recent version of PHP but problem persists:

PHP 5.5.9-1ubuntu4.5 (cli) (built: Oct 29 2014 11:59:10) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies
with Zend OPcache v7.0.3, Copyright (c) 1999-2014, by Zend Technologies

On my localhost Windows system with Xammp 1.7.7 (PHP 5.3.8) everything works fine!.

PHP 5.3.8 (cli) (built: Aug 23 2011 11:50:20)
Copyright (c) 1997-2011 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies
with Xdebug v2.1.1, Copyright (c) 2002-2011, by Derick Rethans

File User.php

C:\\xampp\\htdocs\\Symfony2\\src\\Xyz\\Shared\\XYUserBundle\\Entity\\User.php

Note: Xyz and XYUserBundle represent actual text capitalization.

User.php is as following:

<?php
namespace Xyz\Shared\XYUserBundle\Entity;

use FOS\UserBundle\Model\User as BaseUser;
use FR3D\LdapBundle\Model\LdapUserInterface;

/**
 * User
 */
class User extends BaseUser implements LdapUserInterface
{

    // Esta variable sirve para almacenar (cache) la ruta del usuario en el LDAP
    protected $dn;

    protected $employeeid;

    /**
     * Set Ldap Distinguished Name
     *
     * @param string $dn Distinguished Name
     */
    public function setDn($dn){
        $this->dn = $dn;

        return $this;
    }

    /**
     * Get Ldap Distinguished Name
     *
     * @return string Distinguished Name
     */
    public function getDn(){
         return $this->dn;
    }


    public function setEmployeeid($employeeid)
    {
        $this->employeeid = $employeeid;

        return $this;        
    }

    public function getEmployeeid(){
        return $this->employeeid;
    }

    public function serialize()
    {
        return serialize(array(
            $this->password,
            $this->salt,
            $this->usernameCanonical,
            $this->username,
            $this->emailCanonical,
            $this->email,
            $this->expired,
            $this->locked,
            $this->credentialsExpired,
            $this->enabled,
            $this->id,
            $this->roles,
            $this->dn,
        ));
    }

    public function unserialize($serialized)
    {
        list(
            $this->password,
            $this->salt,
            $this->usernameCanonical,
            $this->username,
            $this->emailCanonical,
            $this->email,
            $this->expired,
            $this->locked,
            $this->credentialsExpired,
            $this->enabled,
            $this->id,
            $this->roles,
            $this->dn,
        ) = unserialize($serialized);
    }

}

File User.orm.yml

C:\\xampp\\htdocs\\Symfony2\\src\\Xyz\\Shared\\XYUserBundle\\Resources\\config\\Doctrine\\User.orm.yml

Xyz\Shared\XYUserBundle\Entity\User:
    type:  entity
    table: fos_user
    id:
        id:
            type: integer
            generator:
                strategy: AUTO
    fields:
        dn:
            type: string
            nullable: false
            length: 255
            fixed: false
            comment: ''
            column: dn
        employeeid:
            type: string
            nullable: false
            length: 15
            fixed: false
            comment: ''
            column: employeeid

What could be the problem?

Answer 1

I think your problem is, that you didn't use

/** * @ORM\\Entity() **/

at the beginning of your User Entity

Answer 2

The problem was upper-case config/ D octrine directory name

Solved by sstok in GitHub :