Fatal error: Uncaught Error: Interface 'Zend\EventManager\EventManagerInterface' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\zendframework\zend-eventmanager\src\EventManager.php:20
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\vendor\zendframework\zend-eventmanager\src\EventManager.php on line 20