the attribute “autocomplete” not working in Symfony

I had installed symfony/ux-autocomplete, and then i create this form

class RechercheType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add('nom', EntityType::class, [
                'class' => Serveurs::class,
                'autocomplete' => true,
            ])
            ->add('Rechercher', SubmitType::class)
        ;
    }

    public function configureOptions(OptionsResolver $resolver): void
    {
        $resolver->setDefaults([
            'data_class' => Serveurs::class,
        ]);
    }
}

but the Autocomplete is not working, i can’t write in my form field, i can just select the choices.
can you help me please.

I tried many things that I found in many forums but I did not find a solution