Created attachment 132505 [details] here is a screenshot SUMMARY STEPS TO REPRODUCE 1. open .deb package from discover any .deb package 2. click install type in password to authenticate 3. then says "cannot install from unsigned repo" OBSERVED RESULT says cannot install from unsigned repo EXPECTED RESULT installs deb package normally SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.20 (available in About System) KDE Plasma Version: 5.20.0 KDE Frameworks Version: 5.75.0 Qt Version: 5.15.0 Discover version: 5.20.0 ADDITIONAL INFORMATION i installed the latest version of kde neon in virtualbox to see if its just my computer or is kde neon itself and i tried installing google chrome multimc launcher normal minecraft launcher they all said "cannot install from unsigned repo" by the way can we get this fixed soon because i literly rely on kde neon for like everything i do on computers ok.
Created attachment 132506 [details] on virtual machine running the latest version of all software
> "cannot install from unsigned repo" This error message comes from the PackageKit library that Discover uses, which in turn comes from the distro's own policies and how they implement their PackageKit plugin. Looks like Ubuntu (the base for Neon) doesn't want you to install unsigned packages, sorry. I imagine if you ask them why, they would say it's for security reasons: you're downloading random stuff from the internet that they haven't vetted and verified. You can always install the package anyway using the command-line apt utility (`apt install path/to/file`) or get Minecraft from either the official repo or Flatpak or Snap.
*** This bug has been marked as a duplicate of bug 428125 ***