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cob_people_detection No connection to server 'load_model_server'

Hello, I am following the Quick Start for cob_people_detection in readme.md. When launching > roslaunch cob_people_detection people_detection.launch everything launches fine but I have error saying: "[ERROR] : Recognition model not trained." Which should be normal because I haven't done any training so far. So, when running : > rosrun cob_people_detection people_detection_client I have error: **No connection to server 'load_model_server'**. It appears that server 'load_model_server' is launched in face_recognizer_node.cpp , BUT ONLY if there is trained data! So there is a loop, I can not train data without that server, and there is no server without trained data?? What am I missing? Should I use some other launch file or some other client to train the data first? Thanks in advance!

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