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The tutorial seems to be written for electric. Are you building the code for electric? The message hints that you have an inconsistent ROS setup. You are probably mixing distributions or release versions between who provides the service and the node calling it.

Make sure that the ROS node providing the service is using the same service definition as your code.

The tutorial seems to be written for electric. Are you building the code for electric? The message hints that you have an inconsistent ROS setup. You are probably mixing distributions or release versions between who provides the service and the node calling it.

Make sure that the ROS node providing the service is using the same service definition as your code.

The service definition has changed between distributions: