Problem about turtlebot_kinect_arm_calibration

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Hi all,

I'm using ubuntu 14.04.1 with ROS indigo. I met problem whey trying to calibrate my turtlebot arm with kinect, following this tutorial. The problem was shown as follows: I found out that both roslaunching 3dsensor.launch or freenect.launch can start up the kinect. But I'm confused about the line: Stopping device RGB and Depth Stream flush.

I can't understand why the kinect can't detect the checkerboard, because I got the image, and got the checkerboard under my camera. This is somewhat tricky.

From the source code I couldn't find out how this error happens.

Thanks very much!