Fatal error: Uncaught Error: Class "Doctrine\DBAL\Platforms\AbstractPlatform" not found in D:\Apache24\www\qilu_sap\back-end\vendor\doctrine\dbal\src\Platforms\DB2Platform.php:31 Stack trace: #0 {main} thrown in D:\Apache24\www\qilu_sap\back-end\vendor\doctrine\dbal\src\Platforms\DB2Platform.php on line 31