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