"There is no active keying set, this is required." help!

I’ve been searching the net for why every time I try to import an .fbx file I exported for testing purposes, I get this message?

“There is no active keying set, this is required.”

I did add an active keying set, and I even made a new animation with using an active keyset from the start… what am I doing wrong?

Anyone? any help appreciated!