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Error message:

roslaunch file contains multiple nodes named [/map_server]. Please check all <node> 'name' attributes to make sure they are unique. Also check that $(anon id) use different ids. The traceback for the exception was written to the log file

Launch file:

<launch>
    <include file ="$(find turtlebot_bringup)/launch/minimal.launch" />
    <arg name="map_file" default="/home/gab/catkin_ws/src/gabS/Desktop.yaml" />
    <node name="map_server" pkg="map_server" type="map_server" args="$(arg map_file)" />
    <include file="$(find turtlebot_navigation)/launch/amcl_demo.launch" />
    <include file="$(find turtlebot_rviz_launchers)/launch/view_navigation.launch" />
</launch>

I am getting an error: while running launch file roslaunch file contains multiple nodes named [/map_server]. Please chec