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
+3-1Lines changed: 3 additions & 1 deletion b/‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+3-1Lines changed: 3 additions & 1 deletion
@@ -1216,7 +1216,9 @@ private function registerTranslatorConfiguration(array $config, ContainerBuilder
             $container->getDefinition('console.command.translation_update')->replaceArgument(6, $transPaths);
         }
 
-        if ($container->fileExists($defaultDir)) {
+        if (null === $defaultDir) {
+            // allow null
+        } elseif ($container->fileExists($defaultDir)) {
             $dirs[] = $defaultDir;
         } else {
             $nonExistingDirs[] = $defaultDir;