Fatal error: Uncaught Error: Interface "Symfony\Component\Translation\Extractor\ExtractorInterface" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\translation\Extractor\ChainExtractor.php:21 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\symfony\translation\Extractor\ChainExtractor.php on line 21