Fatal error: Uncaught Error: Class 'Symfony\Component\String\AbstractUnicodeString' not found in C:\xampp\htdocs\laravel-firebird-update\vendor\symfony\string\CodePointString.php:25 Stack trace: #0 {main} thrown in C:\xampp\htdocs\laravel-firebird-update\vendor\symfony\string\CodePointString.php on line 25