Binding entities to query parameters only allowed for entities have an identifier

[yassineMessaoud9]

I am using a Symfony 4 project, and I want to change the user password, so I created a method in my repository and called it to the controller, but this error it diplay to me,

Binding entities to query parameters only allowed for entities that have an identifier.
Repository

     {
        $dql = <<<DQL
        SELECT u
        FROM App\Entity\Utilisateur u
         WHERE u.email = :email
        AND u.password = :password
         DQL;
 
    return  $this->getEntityManager()->createQuery($dql)
             ->setParameters(['email' => $email, 'password' => $password])
             ->getSingleScalarResult();

Controller

 * @Route("/Reset", name="Reset")
 * Method({"GET"})
 */
public function New(
    Request $request,
    UtilisateurRepository $URe,
    UserPasswordEncoderInterface $userPasswordEncoder,
    EntityManagerInterface $entityManager,
    MailerInterface $mailer
) {
    $o = '';
    $Varmail = $_GET['email'];

    $user = new Utilisateur($o);
    $form = $this->createFormBuilder($user)
        ->add('password', PasswordType::class)
        ->getForm();
    $form->handleRequest($request);
    if ($form->isSubmitted() && $form->isValid()) {
        $to = $Varmail;
        $sujet = 'Password Changed';
        $Message = "Bonjour $Varmail Votre email est changé !";
        $pass = $user->setPassword(
            $userPasswordEncoder->encodePassword(
                $user,
                $form->get('password')->getData()
            )
        );

        $URe->updateU($pass, $Varmail);

        $Mai = new MailerController();
        $Mai->sendEmail($mailer, $to, $sujet, $Message);
    }
    return $this->render('modifier_mdp/index.html.twig', [
        'form' => $form->createView(),
    ]);
}

How can i solve it , And Thanks