Connection has no connected hand

nw_connection_get_connected_socket 17 Connection has no connected handler

TCP Conn 0x600000361680 Failed : error 0:61 [61]

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Main Thread Checker: UI API called on a background thread: -[UIApplication delegate]

运行React Native时，回调要在主线程操作代码

dispatch_async(dispatch_get_main_queue(), ^{
        UIViewController *view = ****; //最上层窗口
        [view.navigationController popViewControllerAnimated:YES];
       
    });