diff --git a/src/Symfony/Component/DependencyInjection/Compiler/AnalyzeServiceReferencesPass.php b/src/Symfony/Component/DependencyInjection/Compiler/AnalyzeServiceReferencesPass.php
index 217c7c2034073..a9b812e61d10f 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/AnalyzeServiceReferencesPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/AnalyzeServiceReferencesPass.php
@@ -14,6 +14,7 @@
use Symfony\Component\DependencyInjection\Argument\ArgumentInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
use Symfony\Component\DependencyInjection\ExpressionLanguage;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\ContainerBuilder;
@@ -155,6 +156,10 @@ private function getDefinitionId($id)
private function getExpressionLanguage()
{
if (null === $this->expressionLanguage) {
+ if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
+ throw new RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
+ }
+
$providers = $this->container->getExpressionLanguageProviders();
$this->expressionLanguage = new ExpressionLanguage(null, $providers, function ($arg) {
if ('""' === substr_replace($arg, '', 1, -1)) {
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