ayatana-webmail crashed with ValueError in require_version(): Namespace AppIndicator3 not available

[Matthias Metzger]

On a fresh ubuntu 22.04 installation ayatana-webmail (22.2.26+dfsg1-1) crashes immediately when starting.

ProblemType: Crash
DistroRelease: Ubuntu 22.04
Package: ayatana-webmail 22.2.26+dfsg1-1
ProcVersionSignature: Ubuntu 5.15.0-30.31-generic 5.15.30
Uname: Linux 5.15.0-30-generic x86_64
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: pass
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Sun May 8 10:57:44 2022
ExecutablePath: /usr/bin/ayatana-webmail
InstallationDate: Installed on 2022-04-29 (8 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
InterpreterPath: /usr/bin/python3.10
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/ayatana-webmail
ProcEnviron:
 LANG=de_DE.UTF-8
 PATH=(custom, user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
Python3Details: /usr/bin/python3.10, Python 3.10.4, python3-minimal, 3.10.4-0ubuntu2
PythonArgs: ['/usr/bin/ayatana-webmail']
PythonDetails: /usr/bin/python3.10, Python 3.10.4, python-is-python3, 3.9.2-2
SourcePackage: ayatana-webmail
Title: ayatana-webmail crashed with ValueError in require_version(): Namespace AppIndicator3 not available
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo vboxsf
mtime.conffile..etc.apport.crashdb.conf: 2022-05-08T11:09:57.501227

[Matthias Metzger (macellarius)]

Obviously I could fix the problem by installing the package gir1.2-ayatanaappindicator3-0.1. And it also works when installing gir1.2-appindicator3-0.1. Should be installed automatically with ayatana-webmail, shouldn't it?