Fatal error: Uncaught Error: Class 'DeepCopy\f001\A' not found in C:\xampp\htdocs\print\vendor\myclabs\deep-copy\fixtures\f001\B.php:5 Stack trace: #0 {main} thrown in C:\xampp\htdocs\print\vendor\myclabs\deep-copy\fixtures\f001\B.php on line 5