failed to rescan

On every boot of 17.10:

Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-background-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-bluetooth-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-color-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-control-center.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-datetime-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-default-apps-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-display-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-info-overview-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-info-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-keyboard-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-mouse-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-network-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-notifications-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-online-accounts-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-power-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-printers-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-privacy-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-region-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-removable-media-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-search-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-sharing-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-sound-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-ubuntu-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-universal-access-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-user-accounts-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-wacom-panel.desktop file: cannot process file of type application/x-desktop
Nov 10 07:50:53 gollum gnome-software[2669]: failed to rescan: Failed to parse /usr/share/applications/gnome-wifi-panel.desktop file: cannot process file of type application/x-desktop