Error when using parallel computing with matlab app designer GUI

Hi,

I am trying to run a parfeval code in matlab app designer GUI. But I am getting the warning that app designer object cannot be saved, and I am not able to proceed further. The parfeval is not proceeding. Can you please let me know how to resolve this. I would like to know whether parfeval can be implemented in app designer.

I have attached the warning image for reference.

Thanks and regards,

B.Srinivasan