gtkmm4/C++ signal_response error

#include <gtkmm.h>
#include <iostream>

class MyWindow : public Gtk::Window {
public:
  MyWindow();

protected:
  void on_button_browse_clicked();
  void on_folder_dialog_response(int response_id, Gtk::FileChooserNative* dialog);

  Gtk::Button m_button_browse;};

void MyWindow::on_button_browse_clicked(){
    auto dialog = Gtk::FileChooserNative::create("Please choose a folder", *this, Gtk::FileChooser::Action::SELECT_FOLDER, "Choose", "Cancel");
    dialog->set_transient_for(*this);
    dialog->set_modal(true);
    dialog->signal_response().connect(sigc::bind(sigc::mem_fun(*this, &MyWindow::on_folder_dialog_response), dialog)); // <- error

    dialog->show();}

void MyWindow::on_folder_dialog_response(int response_id, Gtk::FileChooserNative* dialog){
  switch (response_id) {
    case Gtk::ResponseType::OK: {std::cout << dialog->get_file()->get_path() << std::endl; break;}
    case Gtk::ResponseType::CANCEL: {std::cout << "Cancel clicked." << response_id  << std::endl; break;}
    default: {std::cout << "Unexpected button clicked: " << response_id << std::endl; break;}}}

MyWindow::MyWindow() : m_button_browse("Browse") {
  set_title("File Order Randomizer");

  m_button_browse.set_margin(10);
  m_button_browse.signal_clicked().connect(sigc::mem_fun(*this,
              &MyWindow::on_button_browse_clicked));

  set_child(m_button_browse);}


int main(int argc, char* argv[]){
  auto app = Gtk::Application::create("org.gtkmm.examples.base");

  return app->make_window_and_run<MyWindow>(argc, argv);
}