symfony
diff --git a/‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/AddConsoleCommandPass.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/AddConsoleCommandPass.php
+5Lines changed: 5 additions & 0 deletions b/‎src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/AddConsoleCommandPass.php
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/AddConsoleCommandPass.php
+5Lines changed: 5 additions & 0 deletions
@@ -13,6 +13,7 @@
 
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
 
 /**
  * AddConsoleCommandPass.
@@ -38,6 +39,10 @@ public function process(ContainerBuilder $container)
 
             $class = $container->getParameterBag()->resolveValue($definition->getClass());
             if (!is_subclass_of($class, 'Symfony\\Component\\Console\\Command\\Command')) {
+                if (!class_exists($class, false)) {
+                    throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
+                }
+
                 throw new \InvalidArgumentException(sprintf('The service "%s" tagged "console.command" must be a subclass of "Symfony\\Component\\Console\\Command\\Command".', $id));
             }
             $container->setAlias('console.command.'.strtolower(str_replace('\\', '_', $class)), $id);