Problem with GTK (libadwaita)

[mfat]

Hi everyone.

When I build an appimage for my systemd Pilot app I get gtk ui elements are not loaded and I get these errors. I have copied adwaita themes and icons to AppDir.

./systemd_Pilot-x86_64.AppImage 
QSocketNotifier: Can only be used with threads started with QThread

(python3:248651): Gtk-WARNING **: 08:54:19.036: Unknown key gtk-modules in /home/mahdi/.config/gtk-4.0/settings.ini

(python3:248651): Gtk-WARNING **: 08:54:19.221: Theme parser error: <data>:21:17-27: Expected an identifier

(python3:248651): Gtk-WARNING **: 08:54:19.281: Failed to load icon /usr/share/icons/Adwaita/symbolic/actions/open-menu-symbolic.svg: Unable to load image-loading module: libpixbufloader_svg.so: libpixbufloader_svg.so: cannot open shared object file: No such file or directory

(python3:248651): Gtk-WARNING **: 08:54:19.281: Failed to load icon /usr/share/icons/Adwaita/symbolic/actions/system-search-symbolic.svg: Unable to load image-loading module: libpixbufloader_svg.so: libpixbufloader_svg.so: cannot open shared object file: No such file or directory

(python3:248651): Gtk-WARNING **: 08:54:19.282: Failed to load icon /usr/share/icons/Adwaita/symbolic/ui/window-minimize-symbolic.svg: Unable to load image-loading module: libpixbufloader_svg.so: libpixbufloader_svg.so: cannot open shared object file: No such file or directory

(python3:248651): Gtk-WARNING **: 08:54:19.282: Failed to load icon /usr/share/icons/Adwaita/symbolic/ui/window-maximize-symbolic.svg: Unable to load image-loading module: libpixbufloader_svg.so: libpixbufloader_svg.so: cannot open shared object file: No such file or directory

(python3:248651): Gtk-WARNING **: 08:54:19.283: Failed to load icon /usr/share/icons/Adwaita/symbolic/ui/window-close-symbolic.svg: Unable to load image-loading module: libpixbufloader_svg.so: libpixbufloader_svg.so: cannot open shared object file: No such file or directory

(python3:248651): Gtk-WARNING **: 08:54:19.283: Failed to load icon /usr/share/icons/Adwaita/symbolic/actions/edit-clear-symbolic.svg: Unable to load image-loading module: libpixbufloader_svg.so: libpixbufloader_svg.so: cannot open shared object file: No such file or directory

(python3:248651): Gtk-WARNING **: 08:54:19.300: Tried to remove non-child 0x15da4c20
/tmp/.mount_systemF9LpvL/AppRun.wrapped:291: DeprecationWarning: Gtk.Widget.get_allocated_height is deprecated
  GLib.idle_add(lambda: self.paned.set_position(self.paned.get_allocated_height()))

(python3:248651): Gtk-WARNING **: 08:54:25.109: Failed to load icon /org/gnome/Adwaita/icons/scalable/actions/adw-expander-arrow-symbolic.svg: Unable to load image-loading module: libpixbufloader_svg.so: libpixbufloader_svg.so: cannot open shared object file: No such file or directory

This is what I'm using to build the appimage:

#!/bin/bash
set -e

# Download linuxdeploy and the GTK plugin
wget -c "https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage"
wget -c "https://raw.githubusercontent.com/linuxdeploy/linuxdeploy-plugin-gtk/master/linuxdeploy-plugin-gtk.sh"

# Make them executable
chmod +x linuxdeploy-x86_64.AppImage linuxdeploy-plugin-gtk.sh

# Prepare AppDir (ensure your application files are copied into AppDir appropriately)
# Example: cp -r /path/to/your/app/* AppDir/

# Build the AppImage
./linuxdeploy-x86_64.AppImage \
    --appdir=AppDir \
    --plugin gtk \
    --output appimage \
    --icon-file mypackage.png \
    --desktop-file mypackage.desktop

[probonopd]

You'd probably need something like https://github.com/linuxdeploy/linuxdeploy-plugin-gtk but for Gtk 4 and libadwaita and I don't know whether anyone has made such a thing.

Reference:

• Is this still necessary for modern Gtk4/Libadwaita programs? linuxdeploy/linuxdeploy-plugin-gtk#60