From 30ba9df07c4c25fc9f40b4fba06750060b75e149 Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien.potencier@gmail.com>
Date: Mon, 29 Dec 2014 10:48:52 +0100
Subject: [PATCH] [TwigBundle] always load the exception listener if the
 templating.engines is not present

---
 .../Compiler/ExceptionListenerPass.php                    | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/ExceptionListenerPass.php b/src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/ExceptionListenerPass.php
index 18d98b356d..9fbfd65950 100644
--- a/src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/ExceptionListenerPass.php
+++ b/src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/ExceptionListenerPass.php
@@ -28,9 +28,11 @@ class ExceptionListenerPass implements CompilerPassInterface
         }
 
         // register the exception controller only if Twig is enabled
-        $engines = $container->getParameter('templating.engines');
-        if (!in_array('twig', $engines)) {
-            $container->removeDefinition('twig.exception_listener');
+        if ($container->hasParameter('templating.engines')) {
+            $engines = $container->getParameter('templating.engines');
+            if (!in_array('twig', $engines)) {
+                $container->removeDefinition('twig.exception_listener');
+            }
         }
     }
 }