Fatal error: Uncaught Error: Class 'Zend\Validator\Barcode\AbstractAdapter' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\zendframework\zend-validator\src\Barcode\Issn.php:12
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\zendframework\zend-validator\src\Barcode\Issn.php on line 12