pkexc nautilus error

[Sushenjit Bandyopadhyay]

I have installed Nautilus-Admin to enable opening nautilus and gedit as administrator. But it does not work. On the terminal I get the following error:

$ pkexec nautilus
No protocol specified
Unable to init server: Could not connect: Connection refused

(nautilus:2524): Gtk-WARNING **: cannot open display: :0

Thanks

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: policykit-1 0.105-18
ProcVersionSignature: Ubuntu 4.11.0-13.19-generic 4.11.12
Uname: Linux 4.11.0-13-generic x86_64
ApportVersion: 2.20.6-0ubuntu5
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 15 12:09:19 2017
InstallationDate: Installed on 2017-08-09 (5 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170807)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: policykit-1
UpgradeStatus: No upgrade log present (probably fresh install)

[dino99 (9d9)]

pkexec does not work with wayland (needed to be ported to polkit)

workaround typed into a terminal, to get a gui app loaded: xhost +si:localuser:root

[Sushenjit Bandyopadhyay (s-bandyo1)]

Thanks @dino99 for the workaround. I get some errors about gtk widget, but nautilus opens.

**************** Commands and errors ***********

$ xhost +si:localuser:root
localuser:root being added to access control list

$ pkexec nautilus
sys:1: PyGIWarning: Nautilus was imported without specifying a version first. Use gi.require_version('Nautilus', '3.0') before import to ensure that the right version gets loaded.
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

(nautilus:2687): Gtk-CRITICAL **: gtk_widget_show: assertion 'GTK_IS_WIDGET (widget)' failed

** (nautilus:2687): CRITICAL **: setup_side_pane_width: assertion 'priv->sidebar != NULL' failed

** (nautilus:2687): WARNING **: Unable to get contents of the bookmarks file: Error opening file /root/.gtk-bookmarks: No such file or directory

** (nautilus:2687): WARNING **: Unable to get contents of the bookmarks file: Error opening file /root/.gtk-bookmarks: No such file or directory

************* End commands and errors ***********