What can cause “invalid binary” with no email followup from iTunes Connect?

Question

I\'m trying to submit an update of an existing application on behalf of one of my clients, and I\'m getting \"Invalid Binary\" failures from iTunes Connect with no explanati

Answer 1

I had a pointer to an extract icon file that no longer existed. I deleted the pointer, and the upload seems acceptable, so far. They did send an email fairly promptly that gave relevant details, though the hints above put me on the right track before that, as usual.