Problem starting openni in ros electric

Question

Hi All, I recently downloaded ros/electric. I was trying to run openni node with command : roslaunch openni_launch openni.launch.
The result of this run is not stable. I get it to run at times and at other times, it just doesn't run. It hangs and neither the topic /camera/depth_registered/points shows up anything with rostopic hz nor does rviz show anything.
Also, there is always an error I can see [ERROR] [1314138567.670856122]: Tried to advertise a service that is already advertised in this node [/camera/depth_registered/image_rect_raw/compressed/set_parameters] [ERROR] [1314138567.677972703]: Tried to advertise a service that is already advertised in this node [/camera/depth_registered/image_rect_raw/theora/set_parameters]

I have no clue why this error exists. It exists even when the node hangs and doesn't publish anything . I am using kinect. Any Help appreciated. ~Cheers! Neeraj

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Originally posted by navderm on ROS Answers with karma: 78 on 2011-08-23

Post score: 1

Answer 1

ANSWER UPDATED 9-2-11:

The Electric debs have recently been updated (between RC1 and final release) to include the Diamondback-style interface. I recommend that you try "roslaunch openni_camera openni_node.launch" rather than the new openni_launch package.

If you want to use openni_launch, you probably have to use dynamic reconfigure to turn on depth_registration, as it no longer does so automatically (you can also set a rosparam parameter). Some of the errors you saw with the openni_launch package is probably related to not having a calibration file, and can be safely ignored. If there are errors besides calibration, please post the full and exact error message.

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Originally posted by fergs with karma: 13902 on 2011-08-23

This answer was ACCEPTED on the original site

Post score: 2

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Original comments

Comment by Jake on 2011-08-26:
I have the same problem. Some times the depth points publish and sometimes they do not. Below is a list of the errors that show during startup. [ERROR] [1314382137.050990454]: Tried to advertise a service that is already advertised in this node [/camera/depth_registered/image_rect_raw/compressed/set_parameters] [ERROR] [1314382137.057244743]: Tried to advertise a service that is already advertised in this node [/camera/depth_registered/image_rect_raw/theora/set_parameters]