Install libomnithread4 by entering the following commands in the terminal:
sudo apt update sudo apt install libomnithread4
C++ threading library
omniORB4 is a freely available Common Object Request Broker Architecture (CORBA) 2.6 compliant object request broker (ORB) implementation. It is based on the IIOP communications protocol and should be interoperable with any other CORBA 2.6 compliant ORB. . This includes libomnithread4.