Install libqt5network5 by entering the following commands in the terminal:
sudo apt update sudo apt install libqt5network5
Description:
Qt 5 network module
Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality. . The QtNetwork module offers classes that allow you to write TCP/IP clients and servers. It provides classes to make network programming easier and portable.
Homepage: http://qt-project.org/
Version: 5.9.5+dfsg-0ubuntu1
Section: libs