Fatal error: Uncaught Error: Class 'Google\Collection' not found in C:\xampp7\htdocs\sigpkl\vendor\google\apiclient-services\src\AndroidPublisher\InappproductsListResponse.php:20 Stack trace: #0 {main} thrown in C:\xampp7\htdocs\sigpkl\vendor\google\apiclient-services\src\AndroidPublisher\InappproductsListResponse.php on line 20