SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'.

[guoyaq]

when I run $python python/gps/gps_main.py pr2_example
here is error:
python/gps/agent/ros/ros_utils.py:106: SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'. Please see http://wiki.ros.org/rospy/Overview/Publishers%20and%20Subscribers for more information.
self._pub = rospy.Publisher(pub_topic, pub_type)
Traceback (most recent call last):
File "python/gps/gps_main.py", line 414, in
main()
File "python/gps/gps_main.py", line 399, in main
gps = GPSMain(hyperparams.config, args.quit)
File "python/gps/gps_main.py", line 49, in init
self.gui = GPSTrainingGUI(config['common']) if config['gui_on'] else None
File "python/gps/gui/gps_training_gui.py", line 98, in init
self._action_output = Textbox(self._fig, self._gs_action_output, border_on=True)
File "python/gps/gui/textbox.py", line 41, in init
self.set_bgcolor(bgcolor, bgalpha) # this must come after fig.canvas.draw()
File "python/gps/gui/textbox.py", line 65, in set_bgcolor
self.draw()
File "python/gps/gui/textbox.py", line 70, in draw
self._ax.draw_artist(self._ax.patch)
File "/usr/local/lib/python2.7/dist-packages/matplotlib/axes.py", line 1994, in draw_artist
assert self._cachedRenderer is not None
AssertionError

please help me

[dujinyu]

I have many questions to consult you, can you add QQ 1242642280? @guoyaq