Initial Drupal 11 with DDEV setup

vendor/symfony/dependency-injection/Loader/UndefinedExtensionHandler.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Loader;
+
+class UndefinedExtensionHandler
+{
+    private const BUNDLE_EXTENSIONS = [
+        'debug' => 'DebugBundle',
+        'doctrine' => 'DoctrineBundle',
+        'doctrine_migrations' => 'DoctrineMigrationsBundle',
+        'framework' => 'FrameworkBundle',
+        'maker' => 'MakerBundle',
+        'monolog' => 'MonologBundle',
+        'security' => 'SecurityBundle',
+        'twig' => 'TwigBundle',
+        'twig_component' => 'TwigComponentBundle',
+        'ux_icons' => 'UXIconsBundle',
+        'web_profiler' => 'WebProfilerBundle',
+    ];
+
+    public static function getErrorMessage(string $extensionName, ?string $loadingFilePath, string $namespaceOrAlias, array $foundExtensionNamespaces): string
+    {
+        $message = '';
+        if (isset(self::BUNDLE_EXTENSIONS[$extensionName])) {
+            $message .= \sprintf('Did you forget to install or enable the %s? ', self::BUNDLE_EXTENSIONS[$extensionName]);
+        }
+
+        $message .= match (true) {
+            \is_string($loadingFilePath) => \sprintf('There is no extension able to load the configuration for "%s" (in "%s"). ', $extensionName, $loadingFilePath),
+            default => \sprintf('There is no extension able to load the configuration for "%s". ', $extensionName),
+        };
+
+        return $message.\sprintf('Looked for namespace "%s", found "%s".', $namespaceOrAlias, $foundExtensionNamespaces ? implode('", "', $foundExtensionNamespaces) : 'none');
+    }
+}