The original question , "how do I remove a downloaded app?" may have been misleading!

I downloaded system monitor, which didn't appear to work! So I tried to remove it, which also didn't appear to have worked! I received the following message "Unable to remove "GNOME System Monitor": status-code=409 kind=snap-change-conflict message=snap "gnome-system-monitor" has "install-snap" in progress", could somebody tell me what this means?

What Linux distro are you using.

How and where did you download "gnome System Monitor" from.

Did you use Synaptic package manager or did you install it using the software manger from the software center.

See also:

Nelson Muntz said:

What Linux distro are you using.

How and where did you download "gnome System Monitor" from.

Did you use Synaptic package manager or did you install it using the software manger from the software center.

Click to expand...

I'm using ubuntu.
gnome system manager I downloaded from the 'ubuntu software' app that was bundled with the distro.

I did not use Synaptic package manager, and I don't believe that I am using software manager from software center. To be frank, I am familiar with neither of these things so I can't be much help in that regard, sorry?

Anyway, the problem is that I am new to Ubuntu and failed to recognize that there was a version of 'system manager' , within the utilities app - so, Doh!

It Sounds like you installed it via snap package manager. So to remove it you'll have to use snap in a terminal this way The command may vary depending upon the exact name of the package used for instance I've seen it as gnomesystemmonitor.
So you may have to change the name to align with the actual package installed. Also the above will uninstall the actual program but it often leaves behind a folder in the snap directory you can remove that with this command. First navigate to the snap directory with this command
Good luck.

Nil Magnifico said:

I downloaded system monitor, which didn't appear to work! So I tried to remove it, which also didn't appear to have worked! I received the following message "Unable to remove "GNOME System Monitor": status-code=409 kind=snap-change-conflict message=snap "gnome-system-monitor" has "install-snap" in progress", could somebody tell me what this means?

Click to expand...

Try this;
Solve Error: Snap “package” has “install-snap” change in progress