Fatal error: Uncaught Error: Interface 'Symfony\Component\Routing\Generator\Dumper\GeneratorDumperInterface' not found in C:\xampp\htdocs\admin\vendor\symfony\routing\Generator\Dumper\GeneratorDumper.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\symfony\routing\Generator\Dumper\GeneratorDumper.php on line 21