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Calixte
Asked: 2018-05-15 02:27:54 +0800 CST

Snap application not starting due to "AppArmor policy"

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I installed a snap application (Bookworm) through the software center. The installation process seemed to go fine, but nothing happened when I try to launch it through the GUI. Here's what happens when I use the terminal:

calixte@Ceres:~$ bookworm
[INFO 12:04:45.135623] Application.vala:154: Bookworm version: (null)
[INFO 12:04:45.135687] Application.vala:156: Kernel version: 4.15.0-21-generic
[WARNING 12:04:45.135986] [Gtk] Locale not supported by C library.  Using the fallback 'C' locale.
Failed to register: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Connection ":1.165" is not allowed to own the service "com.github.babluboy.bookworm" due to AppArmor policy

What can I do to fix that error and make the app run? Alternatively, can I change the general AppArmor policy?

apparmor snap 18.04

1 Answers

  1. I tried the same as you after setting my system to the US English locale and the problem persists even there, so I looked a bit further, but unfortunately for you it's a bug and the workaround is to install bookworm using two methods on Ubuntu:

    1. Install from the stable PPA
    2. Install from Flatpak

    Instructions for both of the above are here

    Sorry! :-(

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