Fatal error: Uncaught Error: Interface "Aws\Token\RefreshableTokenProviderInterface" not found in C:\xampp\htdocs\uploadPdf\vendor\aws\aws-sdk-php\src\Token\SsoTokenProvider.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\uploadPdf\vendor\aws\aws-sdk-php\src\Token\SsoTokenProvider.php on line 10