Install libgnuradio-qtgui3.7.11 by entering the following commands in the terminal:
sudo apt update sudo apt install libgnuradio-qtgui3.7.11
Description:
gnuradio Qt graphical user interface functions
QT-based graphical sinks for gnuradio applications. Implements opengl, raster and native plotting methods, and supports a QT Style Sheet (QSS) file to adjust the look. Part of the main gnuradio build.
Homepage: http://gnuradio.org/
Version: 3.7.11-10
Section: universe/libs