Fatal error: Uncaught Error: Class "Nette\DI\CompilerExtension" not found in C:\xampp\htdocs\vendor\nette\di\src\DI\Extensions\ExtensionsExtension.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\nette\di\src\DI\Extensions\ExtensionsExtension.php on line 16