Fatal error: Uncaught Error: Interface "Composer\Plugin\PluginInterface" not found in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\runtime\Internal\ComposerPlugin.php:28 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\runtime\Internal\ComposerPlugin.php on line 28