- I followed the exercise and deployed all the steps including, creating launch file, making the file executable, etc. I don’t get any error in any step, however i dont see the topic “/counter” . The output of “ros2 topic list | grep ‘/counter’” does not show “/counter” but it has other topics from previous units. Does anything missing in the exercises/unit? Please help.
- Also, do you recommend any book to get better at C++ coding for robotics. I’m beginner in C++ programming and your examples are little over my head in terms of picking up programing concepts. please suggest.