Fatal error: Uncaught Error: Class "Aws\Credentials\Credentials" not found in D:\www\cmd\cmd_api\vendor\aws\aws-sdk-php\src\Identity\S3\S3ExpressIdentity.php:6 Stack trace: #0 {main} thrown in D:\www\cmd\cmd_api\vendor\aws\aws-sdk-php\src\Identity\S3\S3ExpressIdentity.php on line 6