gtk 3.0 and AppIndicator3

[widowild1]

$ btsync-gui
/usr/lib/btsync-gui/btsyncguiapp.py:34: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
from gi.repository import Gtk
/usr/lib/btsync-gui/trayindicator.py:32: PyGIWarning: AppIndicator3 was imported without specifying a version first. Use gi.require_version('AppIndicator3', '0.1') before import to ensure that the right version gets loaded.
from gi.repository import AppIndicator3 as AppIndicator
CRITICAL:root:Failure to start btsync agent - exiting...