The option "type" does not exist

[broncha]

Hi I am using SyliusCartBundle in one of my project. This is a form from the bundle:

$builder
    ->add('items', 'collection', array(
        'type' => 'sylius_cart_item',
    ));

But I get the error The option "type" does not exist. Following is the stack trace. I can tell that this is not an issue in the form itself. The proxy types are correctly being resolved , i think. But I cant find the reason why type is not being resolved. Can anyone tell from the trace, what is wrong?

[1] Symfony\Component\OptionsResolver\Exception\UndefinedOptionsException: The option "type" does not exist. Known options are: "action", "allow_extra_fields", "attr", "auto_initialize", "block_name", "button_add_label", "button_delete_label", "by_reference", "cascade_validation", "compound", "constraints", "csrf_field_name", "csrf_message", "csrf_protection", "csrf_provider", "csrf_token_id", "csrf_token_manager", "data", "data_class", "disabled", "empty_data", "error_bubbling", "error_mapping", "extra_fields_message", "inherit_data", "intention", "invalid_message", "invalid_message_parameters", "label", "label_attr", "label_format", "mapped", "max_length", "method", "pattern", "post_max_size_message", "property_path", "read_only", "required", "static_control", "translation_domain", "trim", "validation_groups", "virtual".
    at n/a
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/OptionsResolver/OptionsResolver.php line 738

    at Symfony\Component\OptionsResolver\OptionsResolver->resolve(array('type' => 'sylius_cart_item'))
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/Form/ResolvedFormType.php line 109

    at Symfony\Component\Form\ResolvedFormType->createBuilder(object(FormFactory), 'items', array('type' => 'sylius_cart_item'))
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/DataCollector/Proxy/ResolvedTypeDataCollectorProxy.php line 82

    at Symfony\Component\Form\Extension\DataCollector\Proxy\ResolvedTypeDataCollectorProxy->createBuilder(object(FormFactory), 'items', array('type' => 'sylius_cart_item'))
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/Form/FormFactory.php line 87

    at Symfony\Component\Form\FormFactory->createNamedBuilder('items', 'collection', null, array('type' => 'sylius_cart_item'))
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/Form/FormBuilder.php line 106

    at Symfony\Component\Form\FormBuilder->create('items', 'collection', array('type' => 'sylius_cart_item'))
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/Form/FormBuilder.php line 268

    at Symfony\Component\Form\FormBuilder->resolveChildren()
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/Form/FormBuilder.php line 216

    at Symfony\Component\Form\FormBuilder->getForm()
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Component/Form/FormFactory.php line 39

    at Symfony\Component\Form\FormFactory->create('sylius_cart', object(Order), array())
        in /Users/broncha/apache/mall/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php line 248

    at Symfony\Bundle\FrameworkBundle\Controller\Controller->createForm('sylius_cart', object(Order))
        in /Users/broncha/apache/mall/src/Broncha/Bundle/StoreBundle/Controller/CartController.php line 28

    at Broncha\Bundle\StoreBundle\Controller\CartController->summaryAction()
        in  line 

    at call_user_func_array(array(object(CartController), 'summaryAction'), array())
        in /Users/broncha/apache/mall/app/bootstrap.php.cache line 3008

    at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), '1')
        in /Users/broncha/apache/mall/app/bootstrap.php.cache line 2970

    at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), '1', true)
        in /Users/broncha/apache/mall/app/bootstrap.php.cache line 3119

    at Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle(object(Request), '1', true)
        in /Users/broncha/apache/mall/app/bootstrap.php.cache line 2364

    at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
        in /Users/broncha/apache/mall/web/app_dev.php line 28

[fabpot]

Can you ask for support on the mailing-list or IRC? We are not using Github for support. Thanks.

[popovserhii]

In Symfony 4.3+ for collection option type was changed to entry_type and value must be fully-qualified domain name (FQDN), e.g. \Your\Module\Form\Type\SyliusCartItemType::class

$builder
    ->add('items', 'collection', array(
        'entry_type' => \Your\Module\Form\Type\SyliusCartItemType::class,
    ));

[TomasVotruba]

@popovserhii Thanks so much for sharing, I've just came across this as removed in Symfony 3. You saved me 👍