From c5c7a2304d1b46dda990d1e5bf34283bde499f43 Mon Sep 17 00:00:00 2001
From: Samuel ROZE <samuel.roze@gmail.com>
Date: Sun, 29 Oct 2017 16:04:35 +0000
Subject: [PATCH] Do not activate the cache if Doctrine's cache is not present

---
 .../FrameworkBundle/DependencyInjection/Configuration.php      | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
index 14c61e1395..7c7cc59142 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
@@ -12,6 +12,7 @@
 namespace Symfony\Bundle\FrameworkBundle\DependencyInjection;
 
 use Doctrine\Common\Annotations\Annotation;
+use Doctrine\Common\Cache\Cache;
 use Symfony\Bundle\FullStack;
 use Symfony\Component\Asset\Package;
 use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
@@ -741,7 +742,7 @@ class Configuration implements ConfigurationInterface
                     ->info('annotation configuration')
                     ->{class_exists(Annotation::class) ? 'canBeDisabled' : 'canBeEnabled'}()
                     ->children()
-                        ->scalarNode('cache')->defaultValue('php_array')->end()
+                        ->scalarNode('cache')->defaultValue(interface_exists(Cache::class) ? 'php_array' : 'none')->end()
                         ->scalarNode('file_cache_dir')->defaultValue('%kernel.cache_dir%/annotations')->end()
                         ->booleanNode('debug')->defaultValue($this->debug)->end()
                     ->end()