Hi! I was following the pr2_simulator tutorials and when trying the commands:

roslaunch gazeboworlds gazeboempty_world.launch

roslaunch pr2_gazebo pr2.launch

I get in the output the error:

ERROR: cannot launch node of type [pr2gripperaction/pr2gripperaction]: Cannot locate node of type [pr2gripperaction] in package [pr2gripperaction]

Altough the pr2 model actually spawns. Does anyone know why this happens?

Thanks!