Fatal error: Uncaught Error: Class 'PhpParser\Builder\Declaration' not found in D:\xampp\htdocs\psp\backend\vendor\nikic\php-parser\lib\PhpParser\Builder\Namespace_.php:10 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\nikic\php-parser\lib\PhpParser\Builder\Namespace_.php on line 10