Currently using Modem Manager GUI in Arch Linux x86_64. It crashes on startup currently. If I start it from console, below messages get printed :
[sumitb@sumitslaptop eclipse] $ modem-manager-gui
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkImage:stock is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkWidget:margin-left is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkWidget:margin-right is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkToolButton:stock-id is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkButton:use-stock is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkSettings:gtk-button-images is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkAlignment:left-padding is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkButton:xalign is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkMisc:yalign is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkMisc:xpad is deprecated and shouldn't be used anymore. It will be removed in a future version.
(modem-manager-gui:25380): GLib-GObject-WARNING **: The property GtkMisc:ypad is deprecated and shouldn't be used anymore. It will be removed in a future version.
** (modem-manager-gui:25380): WARNING **: No data loaded from file Connection manager: Network Manager >= 0.9.0 Modem manager: Modem Manager >= 0.7.0
There is API break in libebook library v 3.16 (see e_book_client_connect_sync). You can either downgrade Evolution data server to version 3.14, or rebuild MMGUI with this patch.