An exception has been thrown during the rendering of a template

[devkbsc]

Hello,
I have used this autocomplete bundle in my project. I have encounted an error. I am sure that i have mistaken something in the steps which have been mentioned in the documentation. But i am really worried about which one i have missed. It seems like it work for autocompte doctrine mapping field

Here is my sourcecode

SocieteController.php

public function autocompleteAction(Request $request)
    {
        // Check security etc. if needed
    
        $as = $this->get('tetranz_select2entity.autocomplete_service');

        $result = $as->getAutocompleteResults($request, \BlogBundle\Form\DossierType::class);

        return new JsonResponse($result);
    }

DossierType.php

public function buildForm(FormBuilderInterface $builder, array $options) {
        $builder->add('noDossier', TextType::class, ['label' => 'N° Dossier', 'attr' => ['class' => 'form-control bottom15 top15']])
                ->add('nomDossier', TextType::class, ['label' => 'Nom Dossier', 'attr' => ['class' => 'form-control bottom15 top15']])
                
                ->add('societe', Select2EntityType::class, [
                    //'multiple' => true,
                    'primary_key' => 'id',
                    'remote_route' => 'autocomplete_societe',
                    'class' => Societe::class,
                    'minimum_input_length' => 2,
                    'page_limit' => 10,
                    'allow_clear' => true,
                    'property' => 'nom',
                    'delay' => 250,
                    'cache' => true,
                    'cache_timeout' => 60000, // if 'cache' is true
                    'language' => 'fr',
                    'placeholder' => 'Séléctionnez une société',
                        // 'object_manager' => $objectManager, // inject a custom object / entity manager 
                ])
}

Societe Entity

class Societe {

    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\Column(type="string", nullable=true)
     */
    private $nom;

Societe-section.html.twig which in included in dossier/master.html.twig

<div class="col-md-6">
        {% block tetranz_select2entity_widget_select_option %}
            <option value="{{ label.id }}" selected="selected"
                    {% for key, data in label %}
                        {% if key not in ['id', 'nom'] %} data-{{ key }}="{{ data }}"{% endif %}
                    {% endfor %}>
                {{ label.text }}
            </option>
        {% endblock %}
    </div>