Fatal error: Uncaught Error: Class "Symfony\Component\String\AbstractString" not found in D:\programs\xampp\htdocs\antares-backend\vendor\symfony\string\AbstractUnicodeString.php:29 Stack trace: #0 {main} thrown in D:\programs\xampp\htdocs\antares-backend\vendor\symfony\string\AbstractUnicodeString.php on line 29