Here is the terminal log.


How do I fix it? What does it do? Is it safe or okay?


3 Answers 3


Nautilus is a graphical application so you ought to use gksudo instead :

gksudo nautilus

When you want to do graphical things with high prilivegies, gksudo and gksu are much more convinient than sudo and su.


It is an uncritical message; nautilus should run normally; for reference see this report at launchpad.


In Ubuntu 18.04 gksudo is gone.

Instead, try:

sudo -H nautilus

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