Plugin error on the Turtlebot

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Hi All, I am Adding Astar Global Path Planning Plugin in ROS,I followed http://www.iroboapp.org/index.php?tit...

While running I am getting followed error :

pragnesh@pragnesh-ThinkPad-T410:/opt/ros/indigo/share/turtlebot_navigation/launch/includes$ roslaunch relaxed_astar test.launch
... logging to /home/pragnesh/.ros/log/95fba1ba-0155-11e7-a466-0024d76920f0/roslaunch-pragnesh-ThinkPad-T410-14480.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

Invalid roslaunch XML syntax: no element found: line 25, column 0
The traceback for the exception was written to the log file

Please Help for the same,

Thanks in advance!

Regards,
Pragnesh