Fatal error: Uncaught Error: Class 'Symfony\Component\Templating\Helper\Helper' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\templating\Tests\Fixtures\SimpleHelper.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\symfony\templating\Tests\Fixtures\SimpleHelper.php on line 16