https://api.drupal.org/api/drupal/core%21modules%21migrate%21src%21Exception%21EntityValidationException.php/8.9.x
EntityValidationException.php | Drupal API
phpdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21migrate%21src%21Exception%21EntityValidationException.php/property/EntityValidationException%3A%3Aviolations/11.x
EntityValidationException::$violations | Drupal API
violationsdrupalapi