Fatal error: Uncaught Error: Class "Symfony\Component\VarDumper\Caster\ConstStub" not found in I:\www\picman\vendor\symfony\var-dumper\Caster\VirtualStub.php:14 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\var-dumper\Caster\VirtualStub.php on line 14