Fatal error: Uncaught Error: Interface "Symfony\Component\Intl\Data\Bundle\Writer\BundleWriterInterface" not found in I:\www\pvcIntl\vendor\symfony\intl\Data\Bundle\Writer\PhpBundleWriter.php:23 Stack trace: #0 {main} thrown in I:\www\pvcIntl\vendor\symfony\intl\Data\Bundle\Writer\PhpBundleWriter.php on line 23