Fatal error: Uncaught Error: Class "Google\Cloud\Core\Testing\TestHelpers" not found in /var/www/html/esampa-api/v1/vendor/google/cloud-core/snippet-bootstrap.php:6 Stack trace: #0 {main} thrown in /var/www/html/esampa-api/v1/vendor/google/cloud-core/snippet-bootstrap.php on line 6