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Questions tagged [discover-software-center]

For questions regarding Discover Software Center, an application installer app for KDE.

For questions regarding the Discover Software Center.

The package name is plasma-discover, but it appears on the user side as the "Discover Software Center."

The tag name, , is specific and long to avoid confusion, as there is another unrelated package called discover in the repos.

43 questions
10
votes
1 answer

Getting “The input is not of cabinet format” on Discover

Discover lists 2 items to update: "Dell System Firmware" "UEFI dbx" I don't know how to search for this on the cli. But if I try to install directly in Discover, I get 2 errors “The input is not of cabinet format”. How can I fix this? Ubuntu 22.04.1…
Fernando César
  • 103
8
votes
1 answer

Kubuntu update yeilds, "no metadata URIs for vendor-directory"

Kubuntu 22.04 with backports (upgraded from Kubuntu 20.04 with backports). When I use Discover to install updates, I get a momentary pop-up in the Discover window that reads "no metadata URIs for vendor-directory". No log files seem to be left…
Sturge
  • 131
8
votes
1 answer

How to force flatpak to ask for a password

When installing a flatpak that will be installed globally anyone in the sudo group can install a flatpak without sudo. Is there a way to either edit the polkit rules that are installed by flatpak to allow this or to just remove it altogether so…
TrailRider
  • 7,157
6
votes
3 answers

Software Sources not accessible from Discover

Updated to Kubuntu 22.04 today and i am facing a problem with Software Sources in Discover. I am able to install and remove programs using discover. My password is not being accepted. It was working properly in 21.10. Screen Shots are given…
Sriram Rayadurg
  • 111
6
votes
2 answers

Uninstalling an app I'm not sure how it was installed

Kubuntu 21.10 Foxit Reader is unstable as hell on my PC so I want to remove it, but I don't remember and now can't find how it was installed in the first place so I can do it right. dpkg didn't list it, Discover doesn't list it, snap doesn't list…
Bill in Kansas City
  • 429
5
votes
1 answer

KDE applications installed through plasma-discover not showing, must be launched through Software Center

KDE version: Ubuntu 20.04.3 LTS Plasma Discover Version: 5.18.5-0ubuntu0.1 I rebooted my PC and afterwards, any applications I had previously installed through plasma-discover (https://userbase.kde.org/Discover) no longer show up in the Application…
Zachary Stewart
  • 51
4
votes
1 answer

What is the difference between lvfs and vendor-directory?

What is the difference between lvfs and vendor-directory? KDE has recently added support for lvfs. That is enabled by default, but when looking at the software sources I also see 'vendor-directory - Vendor (Automatic)' I have not been able to find…
BakaKuna
  • 188
3
votes
0 answers

Why is it that Discover doesn't show some (deb-based) programs?

I think Discover is rather good in Kubuntu 24.04 so that I can routinely use it to install, uninstall and update programs, but sometimes it happens that I install things from the terminal, with a deb installer or even with Apper and such. Thus, I…
cipricus
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  • 106
3
votes
0 answers

Discover does not start on Kubuntu 23.04

For some reason Discover doesn't start on Kubuntu for me. This has started happening starting a few weeks ago. I can run apt-get commands just fine from the console with no warnings or errors. There is no output on the console if I run the command…
proteus
  • 131
3
votes
2 answers

Difference between the two Flatpak backends available in apt for Plasma Discover? Is there a problem from Installing both?

So basically I wanted to add Flatpak support to Discover and I came up with these two different Apt commands sudo apt install plasma-discover-flatpak-backend sudo apt install plasma-discover-backend-flatpak They appear to be two different packages…
AttackRoyalty
  • 75
3
votes
3 answers

How to install deb files on kubuntu without using terminal?

I just installed Kubuntu and downloaded chrome, steam, and Dropbox deb files. When I try to install them using Kubuntu's software manager Discover, it says it can not install from an unsigned repo. Is there a way I can install deb files by double…
Scorb
  • 1,330
3
votes
3 answers

KDE Discover You have no authorization to execute this operation (Kubuntu 20.04)

Since yesterday every time I try to download something from KDE Discover on Kubuntu 20.04 I get the following error. You have no authorization to execute this operation The only way to download software is from the terminal which works without any…
a-regular-pear
  • 29
3
votes
1 answer

Diverging package lists between APT and KDE Discover

When I boot into Kubuntu 20.04, the Discover application launches and shows me a list of available updates. But when I go to the terminal and do an apt-get update followed by apt-get upgrade these software packages don't appear. This is a new, stock…
bitsmack
  • 131
2
votes
1 answer

Cannot find Ubuntu App Center after installing KDE plasma

I installed and set up KDE Plasma with the latest version of Ubuntu 24.04. Everything went smoothly, so I downloaded some software like VS Code, Sublime Text editor, and a few other packages. They were working fine until I decided to reboot the…
noobCoder
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2
votes
0 answers

Can't install KDE app from Discover on my Kubuntu 22.04

I need to install Kalendar on my Kubuntu 22.04, but Discover can't find it. I tried searching in Discover and got infinite loading, tried opening using plasma-discover --application appstream://org.kde.kalendar and got something like Application…
Valentin Petrovich
  • 21
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