Can't package for iOS store

[perusopersonale]

I need to update an app for iOS 64 bit, I've build the package, test and it's working in simulator and on my iPad. But when I try to package for iOS store, linker fail, on xCode I have this error:

Undefined symbols for architecture armv7:
"OBJC_CLASS$_TiUIiOSNavWindowProxy", referenced from:
objc-class-ref in libti.draggable.a(TiDraggableModule.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Any help?

[MushoodMunir]

Did you able to find a solution for it?