From 25813e380470d1780447e5971cfd77cdee9f48cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gr=C3=A9goire=20Pineau?= <lyrixx@lyrixx.info>
Date: Fri, 23 Apr 2021 17:09:03 +0200
Subject: [PATCH] [DependencyInjection] Better exception when a configurator is
 not type hinted

---
 .../Component/DependencyInjection/Loader/PhpFileLoader.php      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/DependencyInjection/Loader/PhpFileLoader.php b/src/Symfony/Component/DependencyInjection/Loader/PhpFileLoader.php
index f10aaac4a1..9cc191481d 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/PhpFileLoader.php
+++ b/src/Symfony/Component/DependencyInjection/Loader/PhpFileLoader.php
@@ -102,7 +102,7 @@ class PhpFileLoader extends FileLoader
         foreach ($parameters as $parameter) {
             $reflectionType = $parameter->getType();
             if (!$reflectionType instanceof \ReflectionNamedType) {
-                throw new \InvalidArgumentException(sprintf('Could not resolve argument "$%s" for "%s".', $parameter->getName(), $path));
+                throw new \InvalidArgumentException(sprintf('Could not resolve argument "$%s" for "%s". You must typehint it (for example with "%s" or "%s").', $parameter->getName(), $path, ContainerConfigurator::class, ContainerBuilder::class));
             }
             $type = $reflectionType->getName();