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Invalid roslaunch XML syntax: [Errno 2] while running a roslaunch launch file

Basically like the title refers on using this command: roslaunch a1_456_referee a1.launch

This is the appearing the error in terminal :

while processing /opt/ros/kinetic/share/turtlebot_navigation/launch/includes/gmapping.launch.xml: Invalid roslaunch XML syntax: [Errno 2] No such file or directory: u'/opt/ros/kinetic/share/turtlebot_navigation/launch/includes/gmapping.launch.xml' The traceback for the exception was written to the log file

Of course I manually looked for the file and found it there in the normal directory, I checked my a1.launch file and my include syntax looks like in order aswel:

include file="$(find turtlebot_navigation)/launch/includes/gmapping.launch.xml"

It goes without saying that I am a complete amateur in all this, I've shown some interest in a robotics internship and am required to know basics and all.

Thanks in advance!!

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Invalid roslaunch XML syntax: [Errno 2] while running a roslaunch launch file

Basically like the title refers on using this command:

roslaunch a1_456_referee a1.launch 

a1.launch

This is the appearing the error in terminal :

while processing /opt/ros/kinetic/share/turtlebot_navigation/launch/includes/gmapping.launch.xml: Invalid roslaunch XML syntax: [Errno 2] No such file or directory: u'/opt/ros/kinetic/share/turtlebot_navigation/launch/includes/gmapping.launch.xml' The traceback for the exception was written to the log file

file

Of course I manually looked for the file and found it there in the normal directory, I checked my a1.launch file and my include syntax looks like in order aswel:

include file="$(find turtlebot_navigation)/launch/includes/gmapping.launch.xml" 

turtlebot_navigation)/launch/includes/gmapping.launch.xml"

It goes without saying that I am a complete amateur in all this, I've shown some interest in a robotics internship and am required to know basics and all.

Thanks in advance!!

Invalid roslaunch XML syntax: [Errno 2] while running a roslaunch launch file

Basically like the title refers on using this command:

roslaunch a1_456_referee a1 a1.launch

This is the appearing the error in terminal :

while processing /opt/ros/kinetic/share/turtlebot_navigation/launch/includes/gmapping.launch.xml: Invalid roslaunch XML syntax: [Errno 2] No such file or directory: u'/opt/ros/kinetic/share/turtlebot_navigation/launch/includes/gmapping.launch.xml' The traceback for the exception was written to the log file

Of course I manually looked for the file and found it there in the normal directory, I checked my a1.launch file and my include syntax looks like in order aswel:

include file="$(find turtlebot_navigation)/launch/includes/gmapping.launch.xml"

It goes without saying that I am a complete amateur in all this, I've shown some interest in a robotics internship and am required to know basics and all.

Thanks in advance!!