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

asked 2017-06-07 09:56:14 -0500

mavrec
3 ●2 ●4 ●4

updated 2018-11-28 23:12:42 -0500

Basically like the title refers on using this command:

roslaunch 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!!

answered 2017-06-07 10:17:05 -0500

Thomas D

4347 ●33 ●65 ●86 http://denewiler.us/cv

The repository shows that the file you are (probably) looking for is at a different path: you are missing a gmapping/ string in the include. So, in your a1.launch file you should change the line you have to:

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

Instead of going to the repository online you could also use roscd turtlebot_navigation and find the path to the file you wish to include from your local filesystem.