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This looks like a network problem to me. To prove, check if rostopic echo /cmd_vel also doesn't work. Have a look at this page for more information on debugging network issues.
| | 2 | No.2 Revision |
This looks like a network problem to me. To prove, check if rostopic echo /cmd_vel also doesn't work. Have a look at this page for more information on debugging network issues.
Edit: Also try rosbag record cmd_vel instead of rosbag record -a to make sure that it hasn't something to do with the -a flag.
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