Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromisorInterface" not found in F:\FMS\fms-api\vendor-old\guzzlehttp\guzzle\src\Pool.php:24
Stack trace:
#0 {main}
thrown in F:\FMS\fms-api\vendor-old\guzzlehttp\guzzle\src\Pool.php on line 24