cob_leg_detection problem reading data from laser

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Hi,

I am trying to use this pakage "cob_leg_detection" with a 2D LIDAR suported by ROS "RPILIDAR". I already tested the Lidar with rviz and seems to be working well. My Lidar topic on ROS is "/scan" and i already printed the data with "rostopic echo /scan" to see if everything is ok.

I already changed the topic on the leg_detector.launch file to have access to my lidar data. Here is my launch file:

<launch> <node pkg="cob_leg_detection" type="leg_detection" name="leg_detection" args="scan:=/scan $(find cob_leg_detection)/config/trained_leg_detector.yaml" output="screen"/>

<!--include file="$(find cob_scan_unifier)/launch/scan_unifier.launch"/-->


<!--include file="$(find cob_leg_detection)/launch/filtered_leg_detector.launch" /-->

<arg name="limit" default="0.2" />
<param name="/cob_leg_detector/leg_reliability_limit" value="$(arg limit)" type="double"/>

</launch>

I already checked on rqt_graph and the leg detector is receiving data from my Lidar but the following message is appearing continually

[ WARN] [1493159323.350254602]: MessageFilter [target=base_link ]: Dropped 100.00% of messages so far. Please turn the [ros.cob_leg_detection.message_notifier] rosconsole logger to DEBUG for more information.

It is my first time with ros. When i use rviz i have to change the fixed frame to laser to can see the data but here seems my target is base_link. I am not sure if i am right or if i am doing something wrong.

i hope someone can help me. Thanks

Ros Indigo