Installing kgraphviewer


I’m new here, sorry if I am in the wrong place.

I run and KDE 4.14.8

I would like to use kgraphviewer and I understand it can be installed only via snap based on these instructions:

Everything goes OK, except that during the snap install I get an error about the creation of the loop device. The snap install ends successfully.

A loop device is created anyway (mountpoint: /var/lib/snapd/snap/kgraphviewer/4), but when I run kgraphviewer, after a few seconds of loading, it stops with apparently no error message.

Any suggestions?