I added an error to a form and the $flow->isValid($form) still continues in spite of that.
/**
* @Route("/create", name="create_order")
* @param CreateOrderFlow $flow
* @return Response
*/
public function create(CreateOrderFlow $flow)
{
// Your form data class
$formData = new Order();
// bind data
$flow->bind($formData);
// form of the current step
$form = $flow->createForm();
$form->addError(new FormError('error'));
if( $flow->isValid($form) ){
I added an error to a form and the $flow->isValid($form) still continues in spite of that.