Fatal error: Uncaught Error: Class "Symfony\Component\Translation\Dumper\FileDumper" not found in D:\Apache24\www\hl_eis-new\vendor\symfony\translation\Dumper\JsonFileDumper.php:21 Stack trace: #0 {main} thrown in D:\Apache24\www\hl_eis-new\vendor\symfony\translation\Dumper\JsonFileDumper.php on line 21