Error: Different number of openni2 sensors found.
Now I works on a real turtlebot with kinect v1 rgbd camera, and I meet somethings interesting. Then I unplug everything such as kobuki usb cable, kenect usb cable, logitech bluetooth receiver ... So, there is just a PC alone with ubuntu 14.04 and ros indigo. Now, start troubleshooting as below.
Step1,
without roscore running and type ROSWTF, get infomation listed below:
d1404@master230:~$ roswtf
Loaded plugin tf.tfwtf
Loaded plugin openni2_launch.wtf_plugin
No package or stack in context
Static checks summary:
No errors or warnings
Step2, with roscore running:
d1404@master230:~$ roswtf
Loaded plugin tf.tfwtf
Loaded plugin openni2_launch.wtf_plugin
No package or stack in context
Static checks summary:
No errors or warnings
Beginning tests of your ROS graph. These may take awhile...
analyzing graph...
... done analyzing graph
running graph rules...
... done running graph rules
Online checks summary:
Found 1 warning(s).
Warnings are things that may be just fine, but are sometimes at fault
WARNING The following node subscriptions are unconnected:
* /rosout:
* /rosout
Found 1 error(s).
ERROR Different number of openni2 sensors found.
* 0 openni2 sensors found (expected: 1).
ROS Master does not appear to be running.
Online graph checks will not be run.
ROS_MASTER_URI is [http://master230:11311]
So I wonder why this openni2 error occured and how to solve it? Thanks advanced!
btw, even with kinect camera usb connected , when running roscore then type roswtf willstill get the same error: Found 1 error(s). ERROR Different number of openni2 sensors found. * 0 openni2 sensors found (expected: 1).
so i wanto know why there is the "Loaded plugin openni2_launch.wtf_plugin" ?