I received the following error when trying to publish to Android and iOS from Flash CS6 (Air 3.2):
Application Descriptor File Cannot be Parsed
Searching for a fix yielded that my file is probably invalid, but this is not the case as I can run this project just file from another computer.
Turns out that this problem came up because I was running my FLA out of a network location (i.e, \\Server\path\). Mapping the network drive to an actual drive letter fixed the problem.