Fatal error: Uncaught Error: Class "Symfony\Component\Translation\Exception\RuntimeException" not found in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\symfony\translation\Exception\ProviderException.php:19 Stack trace: #0 {main} thrown in C:\Users\Administrator\Desktop\xamp\htdocs\sdk\symfony\translation\Exception\ProviderException.php on line 19