symfony
diff --git a/‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+8Lines changed: 8 additions & 0 deletions b/‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+8Lines changed: 8 additions & 0 deletions
@@ -232,6 +232,10 @@ public function load(array $configs, ContainerBuilder $container)
         }
 
         if ($this->isConfigEnabled($container, $config['form'])) {
+            if (!class_exists('Symfony\Component\Form\Form')) {
+                throw new LogicException('Form support cannot be enabled as the Form component is not installed.');
+            }
+
             $this->formConfigEnabled = true;
             $this->registerFormConfiguration($config, $container, $loader);
 
@@ -1422,6 +1426,10 @@ private function registerSecurityCsrfConfiguration(array $config, ContainerBuild
 
     private function registerSerializerConfiguration(array $config, ContainerBuilder $container, XmlFileLoader $loader)
     {
+        if (!class_exists('Symfony\Component\Serializer\Serializer')) {
+            throw new LogicException('Serializer support cannot be enabled as the Serializer component is not installed.');
+        }
+
         $loader->load('serializer.xml');
 
         if (!class_exists(DateIntervalNormalizer::class)) {