( ! ) Fatal error: Class 'Symfony\Component\Validator\Constraint' not found in /var/www/clients/client0/web4/web/vendor/symfony/validator/Tests/Fixtures/ConstraintA.php on line 17
Call Stack
#	Time	Memory	Function	Location
1	0.0002	363632	{main}( )	.../ConstraintA.php:0