Hi, I was trying to complete the tutorial "An example of ROS serial netwrok" but when I'm in the step of connect the xbees I get this error:
[INFO] [1529324674.474169]: Requesting topics...
[ERROR] [1529324689.479008]: Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino
I have tested the xbees with XCTU so I know they work, but with ROS I have this problem. I have Melodic, and I have tried in Lunar too but nothing. I couldn't find a solution in the other question so if you can help me I would be very nice. Thanks.
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