duplicate symbol __Z21isGameCenterAvailablev in:
/Users/christophermclaughlin/Desktop/Project2/Libraries/libGameCenterPluginiOS.a(GKService.o)
/Users/christophermclaughlin/Desktop/New Unity Project 22 (original 4)/Assets/Editor/GameCenter/libGameCenterPlugin.a(GameCenterManager.o)
ld: 1 duplicate symbol for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)