qtbase-abi appears to be part of qt5core5a and this installation appears to use a much later version sudo pkcon search libqt5core5a Installed libqt5core5a-5.15.10+p22.04+tunstable+git20230801.0307-0.amd64 (auto:user_jammy-jammy-main) Qt 5 core module My first installation attempt was so...