System Monitor does not launch

My PC has Ubuntu 18.04 installed.

It does not want to launch the System Monitor.

This seems to be an OS related issue. I have launched it before and it worked fine. Possibly due to some updates it has stopped working.

I am not looking for a solution. I just wanted to report this and I hope the issue will be remedied soon with an update.

I would like to know whether other people have the same issue with 18.04.

More info:

• I try to launch it via: Super+A, open System Monitor. No errors. For a few seconds the "loading circle" tries to convince me that there is an attempt to launch it. But then it disappears and nothing happens.

• I am not sure whether this is the command to open from the terminal, but when I run gnome-system-monitor, it tells me:

/snap/gnome-system-monitor/41/bin/desktop-launch: line 23: /home/sandu/.config/user-dirs.dirs: Permission denied
You need to connect this snap to the gnome platform snap.

You can do this with those commands:
snap install gnome-3-26-1604
snap connect gnome-system-monitor:gnome-3-26-1604 gnome-3-26-1604

(the '3-26-1604' number defines the platform version and might change)

Solution 1:

As suggested from comments:

snap remove gnome-system-monitor
sudo apt install gnome-system-monitor

worked for me.

Solution 2:

I had the same issue. The gnome-system-monitor is now available as a snap and it appears an update either broke something or didn't change everything properly (I don't really know why it stopped working).

A solution is to reinstall the snap (using snap, not apt) with:

snap remove gnome-system-monitor
snap install gnome-system-monitor

Doing this will install/connect the System Monitor properly and it will work once again from both icon and terminal.

Solution 3:

If sudo snap get gnome-system-monitor gives an error, probably something went wrong during the upgrade, thus just do:

sudo apt install --reinstall gnome-system-monitor

and reboot.