Fatal error: Uncaught Error: Class 'Symfony\Component\String\AbstractString' not found in C:\xampp\htdocs\ApiSigestWin\vendor\symfony\string\AbstractUnicodeString.php:31 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\vendor\symfony\string\AbstractUnicodeString.php on line 31