Xcode 10 (iOS 12) does not contain libstdc++6.0.9

Question

I download the newest Xcode from Apple, but I found I cannot search the library named \"libstdc++6.0.9\".

Answer 1

Copy it from old Xcode(9.4) will work for physical iOS devices. For Simulator issues with Did find: /usr/lib/libstdc++.6.dylib: mach-o, but not built for iOS simulator. Looks like apple removed compatibility support for simulator. Just download iOS 11.4 simulator and it can be run on it.