Invalid Segment Alignment

I'm trying to load an .ipa file (on mac using the application loader).

After few minutes i get an error message say

ERROR ITMS -9000 : "Invalid segment alignment".
My .ipa file was created with flash builder 4.6,

Flex sdk version 4.6 (build 23201)

Air version 15.

What do I have to do to fix this problem.

Thanks,

Gil