Warning and error messages

[Aqua1ung]

What do you make of this (see below)? What am I missing?

dad@DadsGram/run/media/dad/InstallationKits/AppImage $ ./simple-nfs-gui-gambas-latest-x86_64.AppImage 

(simple-nfs-gui.gambas:217960): GLib-GIO-ERROR **: 23:46:28.123: Settings schema 'org.gnome.settings-daemon.plugins.xsettings' does not contain a key named 'antialiasing'
Trace/breakpoint trap (core dumped)
dad@DadsGram/run/media/dad/InstallationKits/AppImage $ sudo ./simple-nfs-gui-gambas-latest-x86_64.AppImage 
Password: 
Gtk-Message: 23:46:38.331: Failed to load module "canberra-gtk-module"
Gtk-Message: 23:46:38.333: Failed to load module "canberra-gtk-module"

(simple-nfs-gui.gambas:218163): Gtk-WARNING **: 23:46:38.473: Could not load a pixbuf from /org/gtk/libgtk/theme/Adwaita/assets/bullet-symbolic.svg.
This may indicate that pixbuf loaders or the mime database could not be found.
Fontconfig error: Cannot load default config file

Distro: Clear Linux

[preyevates]

I have the same issue. AppImage won't start with double-click. Starts with CLI, chose "Client+Server" | Next, and when I click ... button, it crashes with the following output:

Gtk-Message: 12:38:50.810: Failed to load module "canberra-gtk-module"
Gtk-Message: 12:38:50.811: Failed to load module "pk-gtk-module"
Gtk-Message: 12:38:50.813: Failed to load module "canberra-gtk-module"
Gtk-Message: 12:38:50.813: Failed to load module "pk-gtk-module"

(simple-nfs-gui.gambas:239733): Gtk-WARNING **: 12:38:50.942: Could not load a pixbuf from icon theme.
This may indicate that pixbuf loaders or the mime database could not be found.
gb.form: warning: unable to load gb.form.stock component
Authenticate.CheckCapsLock.100: #6: Type mismatch: wanted Long, got String instead
Authenticate.CheckCapsLock.100 Authenticate.Command.26 FMain.cmdFindMachines_Click.185 ? 
**
Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /usr/share/icons/Adwaita/scalable/status/image-missing.svg: Unable to load image-loading module: libpixbufloader-svg.so: libpixbufloader-svg.so: cannot open shared object file: No such file or directory (gdk-pixbuf-error-quark, 5)
Bail out! Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /usr/share/icons/Adwaita/scalable/status/image-missing.svg: Unable to load image-loading module: libpixbufloader-svg.so: libpixbufloader-svg.so: cannot open shared object file: No such file or directory (gdk-pixbuf-error-quark, 5)
Aborted (core dumped)

[wydnas]

I have something very similar as well: Clean install of Ubuntu 22.04 installed Will only launch from cli and then immediately receive the following error:

./simple-nfs-gui-gambas-latest-x86_64.AppImage
(simple-nfs-gui.gambas:3241): GLib-GIO-ERROR **: 11:54:02.054: Settings schema 'org.gnome.settings-daemon.plugins.xsettings' does not contain a key named 'antialiasing'
Trace/breakpoint trap (core dumped)