S.F.
I have the same problem with my 9 1/2 month old. First of all, her poop is going to change. It will be much more solid, but probably shouldn't be that hard. My daughter also didn't have a poopy diaper for a couple of days at a time when she first started eating solids. They're tummy just takes a little while to get used to solids going through. If if lasts longer than a couple of days, I would call the doctor and see what they say. I read that bananas and apples are constipating...and they are both in just about every type of baby food! Maybe try to back off on the foods with bananas and try giving her some prunes. Also, give her plenty of fluids. Good luck!