Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\guzzlehttp\guzzle\src\Pool.php:19
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\guzzlehttp\guzzle\src\Pool.php on line 19