Tabletop_segmentation can't subscribe - need some help! [closed]

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Hello all!

I try use old tabletod_object_detection. I try launch tabletop_segmentation, but it can't subscrybe to /camera/depth_registered/points.

I change tabletop_segmentation.launch:

<arg name="tabletop_segmentation_points_in" default="/camera/depth_registered/points" />
<arg name="tabletop_segmentation_convert_to_base_link" default="false" />

Activate depth:

rosrun dynamic_reconfigure dynparam set /camera/driver depth_registration True

I use groovy, Ubuntu 12.04

What is wrong?