Hi . I am new user. I am trying to make a map with hector mapping. I have a pepperlfl fuchs lidar. I am using kinetic kame ros kineitc

And I downloaded hector slam from github.

I have already changed some parts of tutorial.launch mappingdefault/launch and also geotiffmapper.launch I got error

[ INFO] [1582102923.100693047]: HectorSM Map service called [ INFO] [1582102923.108241838]: GeotiffNode: Map service called successfully [ INFO] [1582102923.125580157]: Cannot determine map extends! [ INFO] [1582102923.125609995]: Couldn't set map transform [ INFO] [1582102925.101369411]: HectorSM Map service called [ INFO] [1582102925.109536454]: GeotiffNode: Map service called successfully [ INFO] [1582102925.126406566]: Cannot determine map extends! [ INFO] [1582102925.126449846]: Couldn't set map transform

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Here is my code for mappingdefault.launch <arg name="tfmapscanmatchtransformframename" default="scanmatcherframe"/> <arg name="baseframe" default="baselink"/> <arg name="odomframe" default="baselink"/> <arg name="pubmapodomtransform" default="true"/> <!-- Frame names -->

<!-- Tf use -->
<param name="use_tf_scan_transformation" value="true"/>
<param name="use_tf_pose_start_estimate" value="false"/>
<param name="pub_map_odom_transform" value="$(arg pub_map_odom_transform)"/>

<!-- Map size / start point -->
<param name="map_resolution" value="0.050"/>
<param name="map_size" value="$(arg map_size)"/>
<param name="map_start_x" value="0.5"/>
<param name="map_start_y" value="0.5" />
<param name="map_multi_res_levels" value="2" />

<!-- Map update parameters -->
<param name="update_factor_free" value="0.4"/>
<param name="update_factor_occupied" value="0.9" />    
<param name="map_update_distance_thresh" value="0.4"/>
<param name="map_update_angle_thresh" value="0.06" />
<param name="laser_z_min_value" value = "-1.0" />
<param name="laser_z_max_value" value = "1.0" />

<!-- Advertising config --> 
<param name="advertise_map_service" value="true"/>

<param name="scan_subscriber_queue_size" value="$(arg scan_subscriber_queue_size)"/>
<param name="scan_topic" value="$(arg scan_topic)"/>

<!-- Debug parameters -->
<!--
  <param name="output_timing" value="false"/>
  <param name="pub_drawings" value="true"/>
  <param name="pub_debug_output" value="true"/>
-->
<param name="tf_map_scanmatch_transform_frame_name" value="$(arg tf_map_scanmatch_transform_frame_name)" />

tutorial.launch

and also geotfiffmapper.launch <arg name="trajectorysourceframename" default="scanmatcherframe"/> <arg name="trajectoryupdaterate" default="4"/> <arg name="trajectorypublishrate" default="0.25"/> <arg name="mapfilepath" default="~hectorgeotiff/maps"/>