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源码c++ gtkmm3 gtk4 linux：

#include <gtkmm.h>
#include <gtk/gtk.h>
#include <glib.h>

int main(int argc, char *argv[])
{
  auto app =
    Gtk::Application::create(argc, argv,
      "org.gtkmm.examples.base");
 
  Gtk::Window window;
  window.set_default_size(200, 200);
 
  return app->run(window);
}

我在终端中使用下一个命令编译它们：

g++ -o main main.cpp $(pkg-config --cflags gtkmm-3.0 --libs gtk3)

他们没有启动，我在 xubuntu 21.10 xfce (xfce4-panel 4.16.3 (Xfce 4.16)) 上的控制台（终端）中看到下一个错误

user@myPC:~$ ./main

(process:39732): GLib-GObject-WARNING **: 18:55:52.593: cannot register existing type 'GtkWidget'

(process:39732): GLib-GObject-WARNING **: 18:55:52.593: cannot add class private field to invalid type '<invalid>'

(process:39732): GLib-GObject-WARNING **: 18:55:52.593: cannot add private field to invalid (non-instantiatable) type '<invalid>'

(process:39732): GLib-GObject-CRITICAL **: 18:55:52.593: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed

(process:39732): GLib-GObject-WARNING **: 18:55:52.593: cannot register existing type 'GtkBuildable'

(process:39732): GLib-GObject-CRITICAL **: 18:55:52.593: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed

(process:39732): GLib-CRITICAL **: 18:55:52.593: g_once_init_leave: assertion 'result != 0' failed

(process:39732): GLib-GObject-CRITICAL **: 18:55:52.593: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed

(process:39732): GLib-GObject-CRITICAL **: 18:55:52.593: g_type_register_static: assertion 'parent_type > 0' failed

(process:39732): GLib-GObject-WARNING **: 18:55:52.593: cannot add private field to invalid (non-instantiatable) type '<invalid>'

(process:39732): GLib-CRITICAL **: 18:55:52.593: g_once_init_leave: assertion 'result != 0' failed

(process:39732): GLib-GObject-CRITICAL **: 18:55:52.593: g_type_register_static: assertion 'parent_type > 0' failed

(process:39732): GLib-GObject-WARNING **: 18:55:52.593: cannot add private field to invalid (non-instantiatable) type '<invalid>'

为什么？

4

1 回答 1

0

我认为您可能需要安装该软件包gtk3-engines-xfce或更高版本。

sudo apt update
sudo apt install gtk3-engines-xfce
于 2022-01-11T12:57:40.540 回答