Can't launch Rosegarden

Rosegarden won't run at the moment.

The problem seems to be something to do with "GtkWidget" (see below).

24.06 built fine from git source.

I have recently upgraded to fedora 39 and this is probably the first 
time I have tried to

run RG since. Same result on a similar/identical system.


gtk3-3.24.41-1.fc39.x86_64

gtk4-4.12.5-1.fc39.x86_64

RG output:

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.844: cannot 
register existing type 'GtkWidget'

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.844: cannot add 
class private field to invalid type '<invalid>'

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.844: cannot add 
private field to invalid (non-instantiatable) type '<invalid>'

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.844: 
g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE 
(instance_type)' failed

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.844: cannot 
register existing type 'GtkBuildable'

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.844: 
g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE 
(interface_type)' failed

(rosegarden:725222): GLib-CRITICAL **: 11:12:47.844: g_once_init_leave: 
assertion 'result != 0' failed

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.844: 
g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE 
(instance_type)' failed

(rosegarden:725222): Gtk-CRITICAL **: 11:12:47.859: 
gtk_widget_get_style_context: assertion 'GTK_IS_WIDGET (widget)' failed

(rosegarden:725222): Gtk-CRITICAL **: 11:12:47.859: 
gtk_style_context_lookup_color: assertion 'GTK_IS_STYLE_CONTEXT 
(context)' failed

(rosegarden:725222): Gtk-CRITICAL **: 11:12:47.868: 
gtk_style_context_get_background_color: assertion 'GTK_IS_STYLE_CONTEXT 
(context)' failed
qt.qpa.gtk: Property name "theme_unfocused_bg_color" not found.
  Falling back to  QGtk3Interface::QGtkColorDefault::Background

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.868: cannot 
register existing type 'GtkWidget'

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.868: cannot add 
class private field to invalid type '<invalid>'

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.868: cannot add 
private field to invalid (non-instantiatable) type '<invalid>'

(rosegarden:725222): GLib-GObject-CRITICAL **: 11:12:47.868: 
g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE 
(instance_type)' failed
-DCMAKE_BUILD_TYPE=Debug-DCMAKE_BUILD_TYPE=Debug-DCMAKE_BUILD_TYPE=Debugqt.qpa.events.reader: 
[heap]  0




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