abstain from registering incomplete services

DependencyInjection/DoctrineExtension.php

@@ -25,6 +25,7 @@
 use Symfony\Component\DependencyInjection\ServiceLocator;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\PropertyInfo\PropertyInfoExtractorInterface;
 
 /**
  * DoctrineExtension is an extension for the Doctrine DBAL and ORM library.
@@ -798,6 +799,10 @@ protected function loadOrmCacheDrivers(array $entityManager, ContainerBuilder $c
      */
     private function loadPropertyInfoExtractor($entityManagerName, ContainerBuilder $container)
     {
+        if (! interface_exists(PropertyInfoExtractorInterface::class)) {
+            return;
+        }
+
         $propertyExtractorDefinition = $container->register(sprintf('doctrine.orm.%s_entity_manager.property_info_extractor', $entityManagerName), DoctrineExtractor::class);
         if (property_exists(DoctrineExtractor::class, 'entityManager')) {
             $argumentId = sprintf('doctrine.orm.%s_entity_manager', $entityManagerName);