Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in /Applications/XAMPP/xamppfiles/htdocs/Project_April/GuzzleHttp/Promise/EachPromise.php:8 Stack trace: #0 {main} thrown in /Applications/XAMPP/xamppfiles/htdocs/Project_April/GuzzleHttp/Promise/EachPromise.php on line 8