Flex native extension for iOS packaging error -

Flex native extension for iOS packaging error -

i trying create native extension in air receipt printer in ios. when seek bundle application using flash builder 4.7 (on windows 8.1), error message:

error occurred while packaging application:

ld: file built archive not architecture beingness linked (armv7): c:\users\appdata\local\temp\cfb2713d-1d55-4db3-b645-f5e8b4a58f36/libcom.domain.printer.a architecture armv7

compilation failed while executing : ld64

please help !

ios flex package flash-builder ane