Magi-Soft Forums

So, my friends and have been designing our own cardset on MWS for our amusement, and I'm getting this error when I try to add a card to a deck:

"Cannot add card(s): Can only add self-made cards from complied cardsets."

What does that mean, and how do I compile this cardset?

I've also been having this problem and I have no idea what to do.