I developing a game in Unity and I have used Admob, Facebook and GameCenter in it. It was working fine on iOS until I have added the OpenIAB for in-app purchase, though it works fine in Unity Editor.
I am getting this error in xcode:
duplicate symbol __Z14MakeStringCopyPKc in: /Users/UmerAzeem/Library/Developer/Xcode/DerivedData/Unity-iPhone-ejwaywhkiokzjofdpwnbebkbleai/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv7/FBUnityUtility.o /Users/UmerAzeem/Library/Developer/Xcode/DerivedData/Unity-iPhone-ejwaywhkiokzjofdpwnbebkbleai/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv7/AppStoreDelegate.o ld: 1 duplicate symbol for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation)
I have tried almost all the solution that I could find over the internet, but still don't understand how can I remove this duplication error, I have tried looking for duplicate files too, but it also went in vain, someone help me out of this, would appreciate it. Thanks.
Look up in your project for:
MakeStringCopy
And make sure it exists (if exists) only once. If it appears more then once, rename one (make sure to rename it where it being called as well) and try to build again.
