Fatal error: Uncaught Error: Class "Symfony\Component\Translation\Dumper\FileDumper" not found in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\symfony\translation\Dumper\XliffFileDumper.php:22 Stack trace: #0 {main} thrown in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\symfony\translation\Dumper\XliffFileDumper.php on line 22