Fatal error: Uncaught Error: Class "Aws\AwsClient" not found in D:\www\cmd\cmd_api\vendor\aws\aws-sdk-php\src\Chatbot\ChatbotClient.php:77 Stack trace: #0 {main} thrown in D:\www\cmd\cmd_api\vendor\aws\aws-sdk-php\src\Chatbot\ChatbotClient.php on line 77