image_view cannot be run in diamondback

asked 2011-02-20 01:42:58 -0500

alfa_80
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updated 2011-02-21 02:41:46 -0500

Hi,

I was trying to run the image_view node, but it was not successful..it is the package and its binary but cannot be run. I was actually following "http://www.ros.org/wiki/openni_camera" to invoke "rosrun image_view image_view image_view image:=/camera/rgb/image_color". Unfortunately, the output I obtained is "[rospack] couldn't find package [image_view] " . The node is already there in fact as I navigate, I could find in "/opt/ros/diamondback/stacks/image_pipeline/image_view/bin$"

Any ideas??

-alfa-

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Please see: http://www.ros.org/wiki/Support#Guidelines_for_mailing_list_messages. In particular be sure to copy and paste your commandline and the output you get (how do you know it was "not successful"?)

Patrick Bouffard ( 2011-02-20 02:46:26 -0500 )edit

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answered 2011-02-20 03:16:22 -0500

Patrick Bouffard

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Looks like a ROS_PACKAGE_PATH issue. One possibility: when you ran rosinstall in following the openni installation instructions, did you point it to /opt/ros/diamondback? (this is noted in the install instructions but it's subtle).

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I run all the commands given in the installation instructions and try to run "export ROS_PACKAGE_PATH=$PWD:$ROS_PACKAGE_PATH" in the image_view directory..but still, no change..Could you make it more explicit on how should I point/remedy it.

alfa_80 ( 2011-02-20 03:49:23 -0500 )edit

If diamondback was installed properly from debs then you shouldn't have to add image_view explicitly to ROS_PACKAGE_PATH, so I suspect there's a larger issue here. Can you try running some other nodes? Can you do basic things like roscore, rostopic list, etc.? Have you tried roswtf?

Patrick Bouffard ( 2011-02-20 04:29:05 -0500 )edit

After running roswtf, I got this output: Loaded plugin tf.tfwtf No package or stack in context ================================================================================ Static checks summary: Found 1 error(s). ERROR PYTHONPATH [/opt/ros/unstable/ros/core/roslib/src:/opt/ros/diamondback/ros/core/roslib/src:/opt/ros/cturtle/ros/core/roslib/src:] is invalid: Multiple roslib directories in PYTHONPATH (there should only be one) ================================================================================ Beginning tests of your ROS graph. These may take awhile... analyzing graph... ... done analyzing graph running graph rules... connection to [/image_view_1298227468589958529] timed out connection to [/image_view_1298227184442580969] timed out ... done running graph rules running tf checks, this will take a second... ... tf checks complete Online checks summary: Found 1 warning(s). Warnings are things that may be just fine, but are sometimes at fault WARNING The following nodes are unexpectedly connected: * /image_view_1298227184442580969->/rosout (/rosout) * /image_view_1298227477610316242->/rosout (/rosout) * /rviz_1298227453247877962->/rosout (/rosout) * /kinect_base_link->/rosout (/rosout) * /kinect_base_link2->/rosout (/rosout) * /kinect_base_link1->/rosout (/rosout) * /openni_camera->/rosout (/rosout ...(more)

alfa_80 ( 2011-02-20 04:51:21 -0500 )edit

There are 3 errors outputted. It seems that my ROS system is using unstable one, though I prefer to use diamondback instead. I can run other nodes, but it is actually using unstable version, which I do not want. I run "roscd", it gave this path: /opt/ros/unstable/ros$

alfa_80 ( 2011-02-20 04:53:54 -0500 )edit

You probably need to update your ~/.bashrc file if you've changed distributions from unstable->diamondback. It should have the line "source /opt/ros/diamondback/setup.bash" -- and none that mention cturtle or unstable (it would appear you might currently have all three).

fergs ( 2011-02-20 07:13:56 -0500 )edit

in ~/.bashrc, i have these for the last 3 related lines: source /opt/ros/cturtle/setup.sh source /opt/ros/diamondback/setup.bash source /home/shah/ni/setup.bash, I commented the first line (cturtle), however, when I run roscd I still give me ":/opt/ros/unstable/ros$" as the output, that means it is still pointing to the unstable..any thoughts?

alfa_80 ( 2011-02-20 15:09:26 -0500 )edit

Another thing the error is reduced to one already after running "roswtf", the output is "Loaded plugin tf.tfwtf No package or stack in context ================================================================================ Static checks summary: Found 1 error(s). ERROR PYTHONPATH [/opt/ros/unstable/ros/core/roslib/src:/opt/ros/diamondback/ros/core/roslib/src:] is invalid: Multiple roslib directories in PYTHONPATH (there should only be one) ================================================================================ ROS Master does not appear to be running. Online graph checks will not be run. ROS_MASTER_URI is [http://localhost:11311] "

alfa_80 ( 2011-02-20 15:12:40 -0500 )edit

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