Fatal error: Uncaught Error: Interface "Http\Promise\Promise" not found in C:\xampp\htdocs\batuhansunar\vendor\php-http\promise\src\FulfilledPromise.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\batuhansunar\vendor\php-http\promise\src\FulfilledPromise.php on line 14