Gmapping not working, errors with gmapping services.
Hello all, I am a new guy to ROS(Indigo) and dealing with a robot and SLAM which will use gmapping. However I got some error when launch the nodes (errors from roswtf):
Found 3 error(s).
ERROR Could not contact the following nodes: * /slam_gmapping
ERROR The following nodes should be connected but aren't: * /slam_gmapping->/rviz (/tf) * /slam_gmapping->/rviz (/map) * /r2000_node->/slam_gmapping (/r2000_node/scan) * /map_nav_broadcaster_pepperl->/slam_gmapping (/tf) * /qfeel_serial->/slam_gmapping (/tf) * /slam_gmapping->/slam_gmapping (/tf)
ERROR Errors connecting to the following services: * service [/slam_gmapping/get_loggers] appears to be malfunctioning: Unable to communicate with service [/slam_gmapping/get_loggers], address [rosrpc://jtian-Latitude-E6520:33331] * service [/slam_gmapping/set_logger_level] appears to be malfunctioning: Unable to communicate with service [/slam_gmapping/set_logger_level], address [rosrpc://jtian-Latitude-E6520:33331] * service [/dynamic_map] appears to be malfunctioning: Unable to communicate with service [/dynamic_map], address [rosrpc://jtian-Latitude-E6520:33331]
This is my gmapping.launch file:
<?xml version="1.0"?>
<launch>
<include file="$(find pepperl_fuchs_r2000)/launch/r2000.launch">
<arg name="frame_id" value="/scan"/>
<arg name="scanner_ip" value="192.168.1.62"/>
<arg name="scan_frequency" value="35"/>
<arg name="samples_per_scan" value="3600"/>
</include>
<include file="$(find ybot)/launch/ybot.launch"/>
<node pkg="tf" type="static_transform_publisher" name="map_nav_broadcaster_pepperl" args="0.20 0 0.2 0 0 0 base_link scan 100" />
<include file="$(find ybot)/launch/includes/gmapping.launch.xml">
</include>
<node name="rviz" pkg="rviz" type="rviz" args="-d $(find ybot)/param/navigation.rviz"/>
</launch>
And the gmapping.launch.xml:
<launch>
<!-- http://wiki.ros.org/gmapping -->
<arg name="scan_topic" default="/r2000_node/scan" />
<node pkg="gmapping" type="slam_gmapping" name="slam_gmapping" output="screen">
<param name="base_frame" value="base_link"/>
<param name="odom_frame" value="odom"/>
<param name="map_update_interval" value="5.0"/>
<param name="maxUrange" value="6.0"/>
<param name="maxRange" value="8.0"/>
<param name="sigma" value="0.05"/>
<param name="kernelSize" value="1"/>
<param name="lstep" value="0.05"/>
<param name="astep" value="0.05"/>
<param name="iterations" value="5"/>
<param name="lsigma" value="0.075"/>
<param name="ogain" value="3.0"/>
<param name="lskip" value="0"/>
<param name="srr" value="0.01"/>
<param name="srt" value="0.02"/>
<param name="str" value="0.01"/>
<param name="stt" value="0.02"/>
<param name="linearUpdate" value="0.5"/>
<param name="angularUpdate" value="0.436"/>
<param name="temporalUpdate" value="-1.0"/>
<param name="resampleThreshold" value="0.5"/>
<param name="particles" value="80"/>
<param name="xmin" value="-50.0"/>
<param name="ymin" value="-50.0"/>
<param name="xmax" value="50.0"/>
<param name="ymax" value="50.0"/>
<!-- Increase resolution -->
<param name="delta" value="0.01"/>
<param name="llsamplerange" value="0.01"/>
<param name="llsamplestep" value="0.01"/>
<param name="lasamplerange" value="0.005"/>
<param name="lasamplestep" value="0.005"/>
<remap from="scan" to="/r2000_node/scan"/>
</node>
</launch>
It seems there're some issue with the gmapping services. I intstalled the gmapping package via command
apt-get install ros-indigo-slam-gmapping
However after the installation is done, I can't find the package by
rospack find ros-indigo-slam-gmapping
It will prompt a message which saying : [rospack] Error: package 'ros-indigo-slam-gmapping' not found I suspect if the installation of gmapping package was ...