Install libqt4-qt3support-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install libqt4-qt3support-dbg
Description:
Qt 3 compatibility library for Qt 4 debugging symbols
Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality. . This package contains the debugging symbols for the Qt 3 compatibility library for Qt 4.
Homepage: http://qt-project.org/
Version: 4:4.8.7+dfsg-7ubuntu1
Section: universe/debug