I tried to run the appimage on a clean Ubuntu 19.10 installation, but it printed the following error:
error while loading shared libraries: libgtk-x11-2.0.so.0: cannot open shared object file: No such file or directory
The solution is to install the missing package libgtk2.0-0 with the following command:
sudo apt install libgtk2.0-0
This is quite an easy fix, but is annoying for people which are not very experienced with linux. Can’t the libgtk2.0-0 package be included in the appimage file or at least described as a pre-install requirement?