Asus Xtion camera calibration fails to start.

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Hi,

I'm trying to calibrate Asus Xtion following tutorial in openni_launch package. I'm getting following error:

$ rosrun camera_calibration cameracalibrator.py --size 8x6 --square 0.030 image:=/camera/rgb/image_raw camera:=/camera/rgb
Waiting for service /camera/rgb/set_camera_info ...
OK
Exception in thread Thread-3:
Traceback (most recent call last):
  File "/usr/lib/python2.6/threading.py", line 532, in __bootstrap_inner
    self.run()
  File "/opt/ros/electric/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py", line 68, in run
    self.function(m)
  File "/opt/ros/electric/stacks/image_pipeline/camera_calibration/nodes/cameracalibrator.py", line 133, in handle_monocular
    drawable = self.c.handle_msg(msg)
  File "/opt/ros/electric/stacks/image_pipeline/camera_calibration/src/camera_calibration/calibrator.py", line 684, in handle_msg
    rgb = self.mkgray(msg)
  File "/opt/ros/electric/stacks/image_pipeline/camera_calibration/src/camera_calibration/calibrator.py", line 233, in mkgray
    rgb = self.br.imgmsg_to_cv(msg, "bgr8")
  File "/opt/ros/electric/stacks/vision_opencv/cv_bridge/src/cv_bridge/cv_bridge.py", line 106, in imgmsg_to_cv
    source_type = self.encoding_as_cvtype(img_msg.encoding)
  File "/opt/ros/electric/stacks/vision_opencv/cv_bridge/src/cv_bridge/cv_bridge.py", line 54, in encoding_as_cvtype
    return eval("cv.CV_%s" % encoding)
  File "<string>", line 1, in <module>
AttributeError: 'module' object has no attribute 'CV_yuv422'

I'm running electric.