Fatal error: Uncaught Error: Class 'PhpParser\PrettyPrinterAbstract' not found in C:\xampp\htdocs\admin\vendor\nikic\php-parser\lib\PhpParser\PrettyPrinter\Standard.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\nikic\php-parser\lib\PhpParser\PrettyPrinter\Standard.php on line 16