Chapter 3 exercise 3.1

I carried out each and every step carefully and correctly as mentioned in the exercise but I still get an error of failing to load joint1_position_controller. I tried catkin_make, refreshing several times, going to different units and coming back and trying again but nothing seems to work.

Hi @apurva.mramdham,

We are sorry about this error, we’ll have a look at it. But could you please share with us the full error message and the code you’re using?