Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\guzzlehttp\guzzle\src\Pool.php:20 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\guzzlehttp\guzzle\src\Pool.php on line 20