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Running Ubuntu 24.04 LTS.

Cannot launch flatpak apps through the Gnome Software app, though I can launch them directly by console or the Apps grid just fine. For example I am using Firefox right now even though it won't launch from the Gnome-software app.

I usually get one of two errors, either:

  • Failed to sync with dbus proxy
  • ldconfig failed, exit status 256

Some actual examples of the errors shown in Gnome Software:

Chromium - Failed to sync with dbus proxy

enter image description here

Firefox - Failed to sync with dbus proxy

enter image description here

Pinta - ldconfig failed, exit status 256

enter image description here

Adam Guerin
  • 543

1 Answers1

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These are the individual steps to be taken (in terminal) when installing Flatpak.

sudo apt install flatpak
sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flathub.repo

  • restart system

sudo apt install flatpak gnome-software-plugin-flatpak

I would also recommend you then install Flatseal from the Ubuntu Software Center.

Completing those individual steps in the order shown should allow you to use GNOME Software to access Flatpak applications. The restart system step is very necessary.

graham
  • 13,061