Fatal error: Uncaught Error: Class 'Twig\Extension\AbstractExtension' not found in C:\xampp\htdocs\ApiSigestWin\1.0\src\Ginsa\SistemaBundle\Twig\SourceCodeExtension.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\src\Ginsa\SistemaBundle\Twig\SourceCodeExtension.php on line 20