With Flex 4.13 when trying to use -keep-generated-actionscript=true in a Flex Mobile application that uses TabbedNavigatorApplication I get a compilation error: "Type was not found or was not a compile-time constant: ViewNavigatorBase".
It seems to work fine with non-mobile Flex applications. Can anyone else confirm and/or comment on this? Googling didn't return any significant result, so maybe this is recent or I'm having some other problema.