Fatal error: Uncaught Error: Class "JsonMapper" not found in C:\xampp\htdocs\www\zdxnew\web\vendor\apimatic\jsonmapper\example\run.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\www\zdxnew\web\vendor\apimatic\jsonmapper\example\run.php on line 8