Fatal error: Uncaught Error: Class "Symfony\Component\VarDumper\Cloner\Stub" not found in E:\www\catalog_frey\qgmvc\v1.0\composer\vendor\symfony\var-dumper\Caster\DsPairStub.php:19 Stack trace: #0 {main} thrown in E:\www\catalog_frey\qgmvc\v1.0\composer\vendor\symfony\var-dumper\Caster\DsPairStub.php on line 19