Fatal error: Uncaught Error: Class 'Zend\Diactoros\AbstractSerializer' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\zendframework\zend-diactoros\src\Response\Serializer.php:18
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\zendframework\zend-diactoros\src\Response\Serializer.php on line 18