Fatal error: Uncaught Error: Class 'Google_Service' not found in /opt/lampp/htdocs/Learning/Evaluate/google-api/vendor/google/apiclient-services/src/Google/Service/DataTransfer.php:31 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/Learning/Evaluate/google-api/vendor/google/apiclient-services/src/Google/Service/DataTransfer.php on line 31