Fatal error: Uncaught Error: Class 'PhpParser\Lexer' not found in D:\xampp\htdocs\api_patient\vendor\nikic\php-parser\lib\PhpParser\Lexer\Emulative.php:20 Stack trace: #0 {main} thrown in D:\xampp\htdocs\api_patient\vendor\nikic\php-parser\lib\PhpParser\Lexer\Emulative.php on line 20