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splintered-reality / py_trees

Python implementation of behaviour trees.
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Blackboard watcher ERROR: service not found #417

Open RobertoHernandezjr opened 1 year ago

RobertoHernandezjr commented 1 year ago

When trying to launch the blackboard tutorial here: https://py-trees-ros-tutorials.readthedocs.io/en/release-2.1.x/tutorials.html

If you try: py-trees-blackboard-watcher

You get : ERROR: service not found [type: py_trees_ros_interfaces/srv/GetBlackboardVariables]

However if you try any of the other commands with option: py-trees-blackboard-watcher /battery.percentage

It works, and if you go back and try to watch all variables by using 'py-trees-blackboard-watcher' after now you dont get any errors and it works.

stonier commented 1 year ago

So I can reproduce:

Which tutorial were you failing on? Which ROS release? Or was it from sources?

RobertoHernandezjr commented 1 year ago

Tutorial 3 - Introspect the Blackboard Ros Foxy Unbuntu 20.04