Fatal error: Uncaught Error: Undefined constant "MYSQL_DSN" in C:\CBapp\Application\public\deprecate\cbsys\app-store\vendor\src\service\ServiceConnect.php:10 Stack trace: #0 C:\CBapp\Application\public\deprecate\cbsys\app-store\vendor\src\service\Service.php(6): include() #1 {main} thrown in C:\CBapp\Application\public\deprecate\cbsys\app-store\vendor\src\service\ServiceConnect.php on line 10