Bug 3692

The following error message box popups:

Glade
Cannot load glade file

Also the following is displayed on the console:
Trying :</usr/lib64/ADM_glade//main/gtk2_build.gtkBuilder>
[GtkBuilder] Invalid property: GtkGrid.n_columns on line 549
Trying :</builddir/build/BUILD/avidemux_2.6.8/avidemux/gtk/ADM_userInterfaces/ADM_toolkit_gtk/../glade/main/gtk2_build.gtkBuilder>
[GtkBuilder] Failed to open file '/builddir/build/BUILD/avidemux_2.6.8/avidemux/gtk/ADM_userInterfaces/ADM_toolkit_gtk/../glade/main/gtk2_build.gtkBuilder': Adresář nebo soubor neexistuje
Trying :<glade/main/gtk2_build.gtkBuilder>
[GtkBuilder] Failed to open file 'glade/main/gtk2_build.gtkBuilder': Adresář nebo soubor neexistuje

(avidemux3_gtk:3751): Gtk-CRITICAL **: gtk_widget_grab_default: assertion 'gtk_widget_get_can_default (widget)' failed

(avidemux3_gtk:3751): Gtk-CRITICAL **: gtk_widget_grab_default: assertion 'gtk_widget_get_can_default (widget)' failed
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.


From the above log probably the following is the source of problem:
[GtkBuilder] Invalid property: GtkGrid.n_columns on line 549

And no GUI opens.