Fatal error: Uncaught Error: Interface 'GuzzleHttp\Ring\Future\FutureInterface' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\vendor\guzzlehttp\ringphp\src\Future\FutureValue.php:9 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\vendor\guzzlehttp\ringphp\src\Future\FutureValue.php on line 9