Re: [ros-users] Problem with PR2 Simulator IK Tutorial

> We managed to get all the files/packages to compile as outlined in the
> tutorial, but were unable to execute the last step. In particular, the
> turoial asks you to execute:
> python scripts/test_ik_trajectory_tutorial.py
>  after running:
> bin/ik_trajectory_tutorial
> which fails.  The script says that the trajectory failed, but the actual
> reason for failure appears to be a segmentation fault due to a null pointer
> in ik_trajectory_tutorial.cpp after the line:
>      bool ik_service_call = ik_client.call(ik_request,ik_response);
> when the code tries to access the data stored in ik_response.
>       solution[i] = ik_response.solution.joint_state.position[i];