The exact prompt MPLAB gives me is:
This has resulted in the standard compilation path of compile in MATLAB and download via the PICkit2 impossible. My only option is to open the generated source in an MPLAB project and load it that way.The configuration bits in the file are invalid and may cause problems if programmed.
Do you want to set them to their default value? [YES/NO]
Please note you will need to either rebuild the file or export memory again to correct the file.
Config Field: ICS