wxWidgets 3.0.1.0 and boost::asio

#include "wx/wx.h"
#include <boost/asio.hpp>
#include <iostream>

class app_frame :
    public wxFrame
{
    private:
        wxPanel *panel;
    public:
        app_frame() : wxFrame(0, wxID_ANY, wxT("wxWidgets 3 and boost::asio"), wxPoint(0,0), wxSize(300,600))
        {
        }
};

class app :
    public wxApp
{
    public:
        virtual bool OnInit()
        {
            boost::asio::io_service io;
            boost::asio::ip::tcp::socket sock(io);
            boost::asio::ip::tcp::resolver res(io);
            auto end_it = res.resolve({ "localhost", "5000" });
            std::cout << "Connecting...\n";
            boost::asio::async_connect(sock, end_it, [&](boost::system::error_code ec, boost::asio::ip::tcp::resolver::iterator iter) {
                if (!ec)
                    std::cout << "Connected!!!!\n";
                else
                    std::cout << "Not connected!!!!\n";
            });
            frame = new app_frame;
            frame->Show();
            return true;
        }
    private:
        app_frame *frame;
};

IMPLEMENT_APP(app);