SUMMARY STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION every time, when trying to install new packages or requesting an update, the following error message is sent http://security.ubuntu.com/ubuntu/pool/universe/c/chromium-browser/chromium-codecs-ffmpeg-extra_79.0.3945.79-0ubuntu0.19.04.3_amd64.deb 404 Not Found [IP: 141.30.62.26 80] http://security.ubuntu.com/ubuntu/pool/universe/c/chromium-browser/chromium-browser_79.0.3945.79-0ubuntu0.19.04.3_amd64.deb 404 Not Found [IP: 141.30.62.26 80] http://security.ubuntu.com/ubuntu/pool/universe/c/chromium-browser/chromium-browser-l10n_79.0.3945.79-0ubuntu0.19.04.3_all.deb 404 Not Found [IP: 141.30.62.26 80]
Muon is no longer maintained, please switch no a supported alternative like https://apps.kde.org/discover/ or the package manager native no your system. Sorry for the inconvenience.