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It seems like your laser and sonar nodes are not running. You might need to run them. Check pepper_sensors pacakge. Any of the topics described there are not published or any topic on scan seems not to be published. You have to run the laser node provided in this package.

It seems like your laser and sonar nodes are not running. You might need to run them. Check pepper_sensors pacakge. package. Any of the topics described there are not published or any topic on scan seems not to be published. You have to run the laser node provided in this package.