Trying to reproduce Unit 5 Services in ROS: Clients from ROS Basics in 5 days in my local machine

Hi everyone,

I am new to ROS and I’m trying to reproduce the example in Unit 5 with the iri_wam package provided at

However, when I execute roslaunch iri_wam_aff_demo start_demo.launch,

that’s the error I get:

ERROR: cannot launch node of type [iri_wam_reproduce_trajectory/iri_wam_reproduce_trajectory_node]: Cannot locate node of type [iri_wam_reproduce_trajectory_node] in package [iri_wam_reproduce_trajectory]. Make sure file exists in package path and permission is set to executable (chmod +x)

Any suggestions?

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