I am down to one error.
If I try the fix here I get an error -
Failed to get part information: Cannot find the definition for part ‘desktop-gtk3’, required by part ‘virtmanager’.
Remote parts are not supported with bases, so make sure that this part is defined in the snapcraft.yaml.
The only app error I am getting now is ** Gtk:ERROR:…/…/…/…/gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/24x24/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3) Aborted (core dumped)
Looking for instructions on desktop apps using bases.
Edit: Aye, documentation is all over Found this. Will do some reading and try it.