How to fix “nw_connection_receive_internal_block_invoke” (console)
I was getting the same error. My code looked like this: UserServices().getUserWithUID(uid: user.uid) { (user) in self.window?.rootViewController = MapViewController(user: user) self.window?.makeKeyAndVisible() } All I did to resolve the problem was change my code to this: let userServices = UserServices() userServices.getUserWithUID(uid: user.uid) { (user) in self.window?.rootViewController = MapViewController(user: user) self.window?.makeKeyAndVisible() } and the console errors disappeared.