Mapping issue for Loggable extension

[vgross]

I have a mapping issue with the loggable extension. The extension works well to record each change and add that to the ext_log_entries table, but when I try to get a previous version by using the code in the example:

$repo = $em_report->getRepository('Gedmo\Loggable\Entity\LogEntry');
$obj = $em_report->find('Project\ReportBundle\Entity\CommissionData', 2715);
$logs = $repo->getLogEntries($obj);

I have got the issue:

"The class 'Gedmo\Tool\Wrapper\EntityWrapper' was not found in the chain configured namespaces Project\ReportBundle\Entity, Gedmo\Loggable\Entity"

here my config file

        orm:
        auto_generate_proxy_classes: "%kernel.debug%"
        #auto_mapping: true
        default_entity_manager: report
        entity_managers:
            default:
                #metadata_cache_driver: apc
                #query_cache_driver: apc
                connection: default
                mappings:
                    FOSUserBundle: ~
                    ProjectApplicationBundle: ~
                    JMSPaymentCoreBundle: ~
            report:
                #metadata_cache_driver: apc
                #query_cache_driver: apc
                connection: report
                mappings:
                    ProjectReportBundle: ~
                    gedmo_loggable:
                        type: annotation
                        prefix: Gedmo\Loggable\Entity
                        dir: "%kernel.root_dir%/../vendor/gedmo/doctrine-extensions/lib/Gedmo/Loggable/Entity"
                        alias: GedmoLoggable
                        is_bundle: false

stof_doctrine_extensions:
    default_locale: en_US
    orm:
        default:
            timestampable: true
        report:
            timestampable: true       
            loggable: true

Entity:

<?php 
namespace Project\ReportBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;
use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\ORM\Mapping as ORM;

/**
 * Project\ReportBundle\Entity\CommissionData
 *
 * @ORM\Table(name="commission_data")
 * @Gedmo\Loggable
 * @ORM\Entity(repositoryClass="Project\ReportBundle\Entity\Repository\CommissionDataRepository")
 */
class CommissionData
{
    /**
     * @var integer $id
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

I use the code to get an old entry in a service and not in a controller, does that change something?