Multiple errors launching openni.launch: "Tried to advertise a service that is already advertised in this node"
Hi,everybody! I entered "roslaunch openni_launch openni.launch" in the terminal, then I got the following response.
......
[ERROR] [1317043259.886787650]: Unable to open camera calibration file [/home/llq/.ros/camera_info/depth_A00364A05003107A.yaml]
[ WARN] [1317043259.886937571]: Camera calibration file /home/llq/.ros/camera_info/depth_A00364A05003107A.yaml not found.
[ WARN] [1317043259.889818576]: Using default parameters for RGB camera calibration.
[ WARN] [1317043259.889868600]: Using default parameters for IR camera calibration.
[ERROR] [1317043261.086826518]: Tried to advertise a service that is already advertised in this node [/camera/depth_registered/image_rect_raw/compressed/set_parameters]
[ERROR] [1317043261.134411949]: Tried to advertise a service that is already advertised in this node [/camera/depth_registered/image_rect_raw/theora/set_parameters]
I have been solving this problem all day long but I failed.
Comments
The first two messages just warn that there is no calibration file in the default location. You probably need not worry about that. If you do calibrate the camera, the data will be stored there.
joq
(
2011-09-26 06:59:18 -0600
)edit
I'm not sure if he/she's doing something special, but I believe the openni package is supposed to supply the camera calibration info.
Asomerville
(
2011-09-26 07:01:07 -0600
)edit
llqazs, I'm not familiar wtih openni_launch/launch/openni.launch or why it might not work, but openni_camera/launch/openni_node.launch works for my purposes and might be worth trying.
Asomerville
(
2011-09-26 07:07:13 -0600
)edit
Thank you joq. I can display the image with image_view, but once I use rviz to display PointCloud2 data, my computer crashed. And there was no information file saved in the camera_info folder.
llqazs
(
2011-09-27 01:45:24 -0600
)edit
Thank you Asomerville. I have tried to use openni_camera/launch/openni_node.launch, but the problem is that I can't use rviz to display PointCloud2 data. What should I do to make it successful?
llqazs
(
2011-09-27 01:49:33 -0600
)edit
try launching the file and then do a rostopic hz on the image and cloud topics. If it is publishing data then the node came up properly despite the error. I would then try to see if there are any orphaned processes that could be causing the error.
mmwise
(
2011-10-18 08:56:06 -0600
)editadd a comment
