Fatal error: Uncaught Error: Class "Osp\Base\OspStub" not found in C:\xampp\htdocs\tmall\src\vipapis\isv\category\VendorCategoryMappingService.php:35 Stack trace: #0 C:\xampp\htdocs\tmall\src\vipapis\isv\category\VendorCategoryMappingServiceHelper.php(12): require_once() #1 {main} thrown in C:\xampp\htdocs\tmall\src\vipapis\isv\category\VendorCategoryMappingService.php on line 35