Fatal error: Uncaught Error: Interface "Aws\Credentials\CredentialsInterface" not found in C:\xampp\htdocs\vendor\aws\aws-sdk-php\src\Credentials\Credentials.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\aws\aws-sdk-php\src\Credentials\Credentials.php on line 8