openni_kinect crashes! [closed]

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Hi,

I am using ROS electric and tabletop_object_detector node for object segmentation and openni_kinect as kinect driver, (I am using openni_launch/launch/openni.launch)

The problem is sometimes when i am calling /tabletop_segmentation service tabletop_object_detector gives me following error:

"No point cloud received from camera/depth/point"

and when i am killing openni process and run it again openni gives me following error:

nodelet: /usr/include/boost/smart_ptr/shared_ptr.hpp:412: typename boost::detail::shared_ptr_traits<t>::reference boost::shared_ptr< <template-parameter-1-1&gt; &gt;::operator*()="" const="" [with="" t="xn::NodeInfo]:" assertion="" `px="" !="0'" failed.="" [camera_nodelet_manager-2]="" process="" has="" died="" [pid="" 9731,="" exit="" code="" -6].<="" p="">

When this error occurred the only way to get rid of it is to restart my ubuntu!

BTW i have updated my openni drivers!

Any suggestions?