double click on a ui file does nothing

[Andreas Strasser]

when i double click on a ui file in the project browser valama doesnt open the file or start glade. On the terminal i get this messages:

(valama:8762): GLib-GObject-WARNING **: invalid cast from 'GtkBox' to 'GtkWindow'

(valama:8762): Gtk-CRITICAL **: gtk_message_dialog_new: assertion 'parent == NULL || GTK_IS_WINDOW (parent)' failed

(valama:8762): Gtk-CRITICAL **: gtk_message_dialog_set_markup: assertion 'GTK_IS_MESSAGE_DIALOG (message_dialog)' failed

(valama:8762): Gtk-CRITICAL **: gtk_dialog_run: assertion 'GTK_IS_DIALOG (dialog)' failed

(valama:8762): Gtk-CRITICAL **: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed

(valama:8762): GladeUI-CRITICAL **: No adaptor found in glade_widget_adaptor_create_widget_real args

. . .