Fatal error: Uncaught Error: Class "DeepCopy\f001\A" not found in C:\xampp\htdocs\r10ca\vendor\myclabs\deep-copy\fixtures\f001\B.php:5 Stack trace: #0 {main} thrown in C:\xampp\htdocs\r10ca\vendor\myclabs\deep-copy\fixtures\f001\B.php on line 5