Duplicate Symbol XCode duplicate library for same library?

Question

Do you have any idea? Why XCode compilation give this result?

ld: duplicate symbol _kJSONDeserializerErrorDomain in 
  /Users/Shared/_BUILDS_/Debug-iphoneos/libLACDLibrary.a(CJSONDeserializer.o) 
  and /Users/Shared/_BUILDS_/Debug-iphoneos/libLACDLibrary.a(CJSONDeserializer.o)

Answer 1

I have exactly the same problem. And it only complains for arm6 build (not arm7 build). I found a workaround: remove "-all_load" in Other linker flag under Build<-Get Info<-Target. I am not sure whether it is a correct workaround. I hope somebody can explain further and provide the correct workaround if this one is not.