( ! ) Fatal error: Uncaught Error: Class "Doctrine\DBAL\Exception\ConstraintViolationException" not found in E:\Program_Files\wamp64\www\print\vendor\doctrine\dbal\lib\Doctrine\DBAL\Exception\ForeignKeyConstraintViolationException.php on line 8
( ! ) Error: Class "Doctrine\DBAL\Exception\ConstraintViolationException" not found in E:\Program_Files\wamp64\www\print\vendor\doctrine\dbal\lib\Doctrine\DBAL\Exception\ForeignKeyConstraintViolationException.php on line 8
Call Stack
#	Time	Memory	Function	Location
1	0.0014	365392	{main}( )	...\ForeignKeyConstraintViolationException.php:0