Fatal error: Uncaught Error: Interface "CoreInterfaces\Http\HttpClientInterface" not found in C:\xampp\htdocs\www\zdxnew\web\vendor\apimatic\core\tests\Mocking\MockHttpClient.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\www\zdxnew\web\vendor\apimatic\core\tests\Mocking\MockHttpClient.php on line 10