Latest itunes update conflicting with garageband 5.1

I just updated itunes to latest on my OS 10.7.5 and now I cannot share a file to itunes from garageband 5.1.

And my system is too old will for the latest garageband. When I click share to Itunes it is hangtime forever, had to force close it. I tried making the file smaller. Doesn't matter. I am guessing it is a conflict with new Itunes, as that is the only thing that has changed. Help!

Any other way to save the GB file as an mp3 ???

Thanks!