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Hello.. Am at tutorial: Examine simple Publisher and Subscriber.
On command: rosrun beginner_tutorials talker I get proper out "hello world" 233 (so on..) but for command: rosrun begineer_tutorials listener
There is nothing displayed on the terminal:
its just blank ~/ros workspace/beginner_tutorials$ ___(nothing)___
i have re-done file listener.cpp updated Cmakelist.txt, am I suppose to do any other changes??
Thank you!
Hi, I just tested it. Its working fine. Just check if both talker and listener are connected through the same topic "/chatter"
You can use below command to do that.
rxgraph
The graph should look exactly like below. If both are not connected then it means you are publishing and advertising in different topics.
Hope this helps, Karthik
Asked: 2011-12-14 05:22:55 -0500
Seen: 376 times
Last updated: Dec 14 '11
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