Fatal error: Uncaught Error: Class "Aws\AwsClient" not found in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\aws\aws-sdk-php\src\Iot\IotClient.php:554 Stack trace: #0 {main} thrown in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\aws\aws-sdk-php\src\Iot\IotClient.php on line 554