The first solution seems to works but the second it does not. This force KNIME to be launched every time from the command line preceded by the command “export SWT_GTK3=0”.
Why the solution of modifying the knime.ini file does not work? Does anybody has a clue for it?
Thank you for your prompt reply. I just realized something odd. If I launch KNIME from terminal (with the knime.ini file modified as suggested in the F.A.Q.) the problem effectively does not appear anymore. Nevertheless when I launch KNIME from the dock (i.e. the Ubuntu-Unity left sidebar) the problem persist.
This is not a serious problem anyway it is strange.
I am experiencing a similar problem since yesterday.
I installed KNIME version 3.4.2 on my linux machine running Ubuntu 17.10 (beta version) last December before Christmas. It was working fine until yesterday when, after some updates for Ubuntu were installed, it stopped working.
Several errors messages are thrown on the shell reading like: