Cannot install Qt-4 on Ubuntu 20.04 - Quite Universal Circuit Simulator (QUCS)
Solution 1:
The Qt4 framework has been removed from Ubuntu 20.04 main repository.
You can still get Qt4 libraries, adding the PPA rock-core/qt4
Run in a terminal:
sudo add-apt-repository ppa:rock-core/qt4
sudo apt update
And install the required Qt4 libraries by running command:
sudo apt install qt4-dev-tools libqt4-dev libqt4-core libqt4-gui
or
sudo apt install qt4-dev-tools libqt4-dev libqtcore4 libqtgui4
Solution 2:
Although @kyodake answer is correct, there is good news:
-
Nice developers are working on Qt5 port in the main site;
-
I have concocted an AppImage version (alas, without manuals and probably not the best configured one, but it works) here: https://rmano.github.io/qucsAppImagesBuild/
You can just download the AppImage, make it executable with chmod +x, and run it.
