app/bundles/CampaignBundle/Executioner/Dispatcher/Exception/LogPassedAndFailedException.php

<?php

namespace Mautic\CampaignBundle\Executioner\Dispatcher\Exception;

use Mautic\CampaignBundle\Entity\LeadEventLog;

class LogPassedAndFailedException extends \Exception
{
    public function __construct(LeadEventLog $log)
    {
        parent::__construct("LeadEventLog ID # {$log->getId()} was passed to both pass() or fail(). Pass or fail the log, not both.", 0, null);
    }
}