Call to undefined method BolCom\RetailerApi\Model\Order\Command\ShipOrderItem::with()

[internetboekhandel]

Same problem is still of problem?

We are having the same problem:
PHP Fatal error: Uncaught Error: Call to undefined method BolCom\RetailerApi\Model\Order\Command\ShipOrderItem::with()

The file ShipOrderItem.php is in the correct folder.
If I get a print of the after logging in the handler is missing:
[handlerMapping:BolCom\RetailerApi\Infrastructure\MessageBus:private] => Array
(
[BolCom\RetailerApi\Model\Order\Query\GetAllOpenOrders] => BolCom\RetailerApi\Handler\Order\GetAllOpenOrdersHandler
[BolCom\RetailerApi\Model\Order\Query\GetOrder] => BolCom\RetailerApi\Handler\Order\GetOrderHandler
[BolCom\RetailerApi\Model\Order\Command\CancelOrder] => BolCom\RetailerApi\Handler\Order\CancelOrderHandler
[BolCom\RetailerApi\Model\Order\Command\ShipOrderItems] => BolCom\RetailerApi\Handler\Order\ShipOrderItemHandler
[BolCom\RetailerApi\Model\Offer\Command\CreateOffer] => BolCom\RetailerApi\Handler\Offer\CreateOfferHandler
[BolCom\RetailerApi\Model\Offer\Command\UpdateOffer] => BolCom\RetailerApi\Handler\Offer\UpdateOfferHandler
[BolCom\RetailerApi\Model\Offer\Command\UpdateOfferPrice] => BolCom\RetailerApi\Handler\Offer\UpdateOfferPriceHandler
[BolCom\RetailerApi\Model\Offer\Command\UpdateOfferStock] => BolCom\RetailerApi\Handler\Offer\UpdateOfferStockHandler
[BolCom\RetailerApi\Model\Offer\Query\GetOffer] => BolCom\RetailerApi\Handler\Offer\GetOfferHandler
[BolCom\RetailerApi\Model\Offer\Command\DeleteOffer] => BolCom\RetailerApi\Handler\Offer\DeleteOfferHandler
[BolCom\RetailerApi\Model\Rma\Query\GetAllReturns] => BolCom\RetailerApi\Handler\Rma\GetAllReturnsHandler
[BolCom\RetailerApi\Model\Rma\Query\GetReturn] => BolCom\RetailerApi\Handler\Rma\GetReturnHandler
[BolCom\RetailerApi\Model\Rma\Command\HandleReturn] => BolCom\RetailerApi\Handler\Rma\HandleReturnHandler
[BolCom\RetailerApi\Model\ProcessStatus\Query\GetStatusByEntity] => BolCom\RetailerApi\Handler\ProcessStatus\GetStatusByEntityHandler
[BolCom\RetailerApi\Model\ProcessStatus\Query\GetStatusByProcessIds] => BolCom\RetailerApi\Handler\ProcessStatus\GetStatusByProcessIdsHandler
[BolCom\RetailerApi\Model\Shipment\Query\GetShipment] => BolCom\RetailerApi\Handler\Shipment\GetShipmentHandler
[BolCom\RetailerApi\Model\Shipment\Query\GetShipmentList] => BolCom\RetailerApi\Handler\Shipment\GetShipmentListHandler
[BolCom\RetailerApi\Model\Inventory\Query\GetInventory] => BolCom\RetailerApi\Handler\Inventory\GetInventoryHandler
)

With regards, Theo