System Workbench for STM32

I use ubuntu studio 19.10. I've solve that problem setting the symbolic links:

sudo ln -s libncursesw.so.6.1 libncurses.so.5
sudo ln -s libncursesw.so.6.1 libtinfo.so.5

and then installing libncurses:

sudo apt-get install libncurses5

hope it helps!