Public bug reported: Hi, I am the developer of Web Apps (https://flathub.org/apps/net.codelogistics.webapps) which is a Flatpak application which uses XDG Desktop Portal's Dynamic Launcher portal to create desktop files. However, on Ubuntu 24.04, this fails with this output in the terminal:
`GDBus.Error:org.freedesktop.portal.Error.InvalidArgument: Dynamic launcher icon failed validation` which is apparently due to Ubuntu deciding to use Apparmor to restrict the creation of user namespaces in bubblewrap. Unfortunately I don't use Ubuntu or have any idea about what apparmor or bubblewrap are, but I have come to know from https://gitlab.gnome.org/GNOME/epiphany/-/issues/2357 and https://etbe.coker.com.au/2024/04/24/ ubuntu-24-04-bubblewrap/ that this issue is being caused by apparmor on Ubuntu. Please refer to these links for complete details about this issue. I am using Ubuntu 24.04 LTS, GNOME 46 on Wayland and apparmor version 4.0.0-beta3-0ubuntu3. ** Affects: apparmor (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069526 Title: bubbewrap cannot create namespace - Failed RTM_NEWADDR: Operation not permitted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2069526/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
