the phrase “that couldn’t possibly happen” is a phrase that is going to live right up there with the question “did you try it on a clean machine?”
I have spent quite a few hours lately trying to figure out a not terribly obscure part of the UIDocument specification as it applies to exported UTIs and getting the finder and iTunes to recognize a file package as a package and not as a simple folder.
as it turns out, the documentation is likely written by people who probably answer yes to that question in the first paragraph… that said, I would like to announce to anyone else who asks, that if you are trying to construct a UIDocument based application, and you seem to be having trouble getting your system to recognize that your carefully crafted package of document parts should be recognized as a singular whole rather than a loose agglomeration of bits, it is probably that your system is old enough that it is looking through fuzzy glasses and getting confused. it is in need of a flea bath. at the following link, there are some very coherent instructions on what to do about it. oh the interconnectedness of things…
I can’t tell you how well I’ll sleep now…