Warning: require_once(vendor/autoload.php): Failed to open stream: No such file or directory in D:\xampp\htdocs\pimcore\my-project\vendor\codeception\stub\RoboFile.php on line 7

Fatal error: Uncaught Error: Failed opening required 'vendor/autoload.php' (include_path='D:\xampp\php\PEAR') in D:\xampp\htdocs\pimcore\my-project\vendor\codeception\stub\RoboFile.php:7 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\codeception\stub\RoboFile.php on line 7