If I try to launch Nautilus in whatever way (from Unity, Terminal), it doesn't launch. Terminal gives me these outputs:

launch

name@machine:~$ nautilus



(nautilus:4367): GLib-GIO-ERROR **: Settings schema 'org.gnome.nautilus.preferences' is not installed



Trasovací/ladící past (SIGTRAP) (core dumped [obraz paměti uložen])

launch with sudo

name@machine:~$ sudo nautilus



(nautilus:4672): Gtk-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files



(nautilus:4672): GLib-GIO-ERROR **: Settings schema 'org.gnome.nautilus.preferences' is not installed



Trasovací/ladící past (SIGTRAP) (core dumped [obraz paměti uložen])

check

name@machine:~$ nautilus -c

running nautilus_self_check_file_utilities

running nautilus_self_check_file_operations

running nautilus_self_check_directory



(nautilus:4689): GLib-GIO-ERROR **: Settings schema 'org.gnome.nautilus.preferences' is not installed



Trasovací/ladící past (SIGTRAP) (core dumped [obraz paměti uložen])

I tried to reinstall Nautilus (with purge), reboot, remove ~/.config/nautilus, step by step at first and then all at once but nothing worked. I haven't changed any configuration or made any significant changes in Ubuntu system since installation. Yesterday Nautilus worked, today doesn't. Does anybody know how to fix it?