Avant-window-navigator system notification daemon applet crashed

GStreamer-CRITICAL **: gst_debug_add_log_function: assertion `func != NULL' failed
aborting...

Solution: re-install avant-window-navigator-bzr & awn-extras-applets-bzr

configure: error: The xdg python module is required (pyxdg or python-xdg)
    Aborting...

Stupid python3!

Solution: sudo ln -s /usr/bin/python2 /usr/bin/python