Install libsoqt4-20 by entering the following commands in the terminal:
sudo apt update sudo apt install libsoqt4-20
Description:
Qt4 GUI component toolkit for Inventor - runtime
SoQt is a Qt GUI component toolkit library for Coin, based on the API of the InventorXt GUI component toolkit. SoQt is also compatible with OpenInventor of SGI and TGS. . This library is linked against Qt version 4.
Homepage: https://bitbucket.org/Coin3D/soqt
Version: 1.6.0~e8310f-4
Section: universe/libs