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Missing repositories with Qt4 libraries on Ubuntu 21.04 for Raspberry Pi

pe flag

I tried the official Raspberry Pi OS 32-bit 2021-05-07-raspios-buster-armhf-full and I was able to install opencv-python with its dependencies, including libqtgui4 and libqt4-test. I'm trying to accomplish the same with Ubuntu 21.04 for Raspberry Pi ubuntu-21.04-preinstalled-desktop-arm64+raspi, unfortunately apt can't find Qt4 libraries. I tried a few repositories recommended by others with no luck. Where can I find these dependencies?

guiverc avatar
cn flag
Qt4 is EOL and was removed from Ubuntu in 2019 (2015 upstream was announced EOL though Debian & Ubuntu supported it until 15-Mar-2019) ; (for more details refer https://discourse.ubuntu.com/t/removing-qt-4-from-ubuntu-before-the-20-04-release/12295). The package if maintained should have been ported to Qt5 (introduced 19-Dec-2012) before now
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