objc[4809]: Class PublicKey is implemented in both /System/Library/PrivateFrameworks/MessageProtection.framework/MessageProtection (0x24b6175e0) and /private/var/containers/Bundle/Application/2A5E024C-4D05-4C85-9B9F-64EA1857A7C5/xxx.app/xxx(0x101e5f030). One of the two will be used. Which one is undefined.