My doctrine repository code doesn't work, while I am able to access the database and read table data normally.
I get this stacktrace:
EntityManager->getRepository('AppBundle:Person') in src\AppBundle\Controller\PersonViewController.php (line 18) 
  public function indexAction(Request $request) {
         $em = $this->getDoctrine()->getManager();
         $repo = $em->getRepository('AppBundle:Person');
         $persons = $repo->findAll();
         dump($persons);
The person entity model:
Person.php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
 * Class Person
 * @Package AppBundle/Entity
 *
 * @ORM\Entity(repositoryClass="AppBundle\Repository\PersonRepository")
 * @ORM\Table(name="[Person]")
 */
class Person {
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;
    /**
     * @ORM\Column(type="string", length=4)
     */
    protected $type;
}
In case this is necessary as well, the repo code:
PersonRepository.php
<?php
namespace AppBundle\Repository;
use /** @noinspection PhpUndefinedClassInspection */
    Doctrine\ORM\EntityRepository;
class PersonRepository extends EntityRepository {
    public function create() {
        $entity = new Person();
        $entity->type('WM_B');
        $this->_em->persist($entity);
        $this->_em->flush();
    }
}