Fatal error: Uncaught Error: Class "Aws\AwsClient" not found in C:\Apache24\htdocs\ControlMantWeb\vendor\aws\aws-sdk-php\src\Emr\EmrClient.php:122 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\ControlMantWeb\vendor\aws\aws-sdk-php\src\Emr\EmrClient.php on line 122