I overlay AIR Flex 33 over the Feathers Flex/AIR 32 files. It run in the simulator but when I go to export (-arch armv8), there is NO build file. No error pops up. I'm using Flash Builder.
Just to see I went back to the Feathers SDK/AIR 32. It compiles fine.
I also did a quick check on my JAVA version
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)
That's JAVA 8 I think.