Description:

Without libappindicator-gtk3 starting 'blueman-applet' fails with the following error message:

blueman-applet 11.09.27 ERROR PluginManager:90 load_plugin: Unable to load plugin module AppIndicator
Traceback (most recent call last):
File "/usr/lib/python3.8/site-packages/blueman/plugins/applet/AppIndicator.py", line 7, in <module>
require_version('AppIndicator3', '0.1')
File "/usr/lib/python3.8/site-packages/gi/__init__.py", line 129, in require_version
raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace AppIndicator3 not available

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3.8/site-packages/blueman/main/PluginManager.py", line 88, in load_plugin
importlib.import_module(self.module_path.__name__ + ".%s" % plugin)
File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/usr/lib/python3.8/site-packages/blueman/plugins/applet/AppIndicator.py", line 9, in <module>
raise ImportError("AppIndicator3 not found")
ImportError: AppIndicator3 not found



Additional info:
* package version(s)
* config and/or log files etc.
* link to upstream bug report, if any

Steps to reproduce:
1. pacman -S blueman
2. systemctl restart bluetooth
3. blueman-applet