I have developed an application using ZBarSDK for Barcode. It is working fine with 32 bit support, but while I am going to upgrade it to 64 bit, it is giving linker error. Is there any tutorial or way to find out the solution ? Below are the warnings, with linker error.
duplicate symbol in: projectpath/arm64/main.o
projectpath/arm64/AppDelegate.o
duplicate symbol in: projectpath/arm64/main.o
projectpath/arm64/ViewController.o
etc...
This kind of warnings and linker error is there for every controller. I konw, this kind of warning comes when there are similar named class are twice or more time in source code, but if I remove 64 bit it is working fine. How to get rid of this kind of linker error.