I'm on OpenSUSE Tumbleweed. Everything is up to date as of last night, including my Qt and GTK packages. My DE is XFCE.
Only the AppImage build, qtractor-1.6.4-24.1.x86_64.AppImage, works! This is better than average for audio software on my system!
I want to report that every other way of getting qtractor has failed for me.
I get more or less the same bunch of errors, then the program appears to do nothing:
frc@localhost:~/Bureau> qtractor
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: cannot register existing type 'GtkWidget'
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: cannot add class private field to invalid type '<invalid>'
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: cannot add private field to invalid (non-instantiatable) type '<invalid>'
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: cannot register existing type 'GtkBuildable'
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed
(qtractor:9524): GLib-CRITICAL **: 17:02:54.681: g_once_init_leave: assertion 'result != 0' failed
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed
(qtractor:9524): Gtk-CRITICAL **: 17:02:54.681: gtk_widget_get_style_context: assertion 'GTK_IS_WIDGET (widget)' failed
(qtractor:9524): Gtk-CRITICAL **: 17:02:54.681: gtk_style_context_lookup_color: assertion 'GTK_IS_STYLE_CONTEXT (context)' failed
(qtractor:9524): Gtk-CRITICAL **: 17:02:54.681: gtk_style_context_get_color: assertion 'GTK_IS_STYLE_CONTEXT (context)' failed
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: cannot register existing type 'GtkWidget'
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: cannot add class private field to invalid type '<invalid>'
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: cannot add private field to invalid (non-instantiatable) type '<invalid>'
(qtractor:9524): GLib-GObject-CRITICAL **: 17:02:54.681: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed
I'm really hyped about this software, it's super cool, it's got exactly the features I need, so I'd totally love to have a working native build. Thanks in advance for any assistance here!
check https://www.rncbc.org/drupal/node/2967 might help