How to edit and run the nav2d tutorial

asked 2016-02-01 08:11:03 -0500

RosUser
81 ●22 ●26 ●31

I'm trying to edit the launch file by following tutorials for nav2d. So at the beginning I have download the package from github: https://github.com/skasperski/navigat... and past it in my catkin_ws, and run make Afterword when I try to run the one of the tutorials then it complain this:

roslaunch nav2d_tutorials tutorial2.launch

multiple files named [tutorial2.launch] in package [nav2d_tutorials]: - /opt/ros/indigo/share/nav2d_tutorials/launch/tutorial2.launch - /home/hjt/catkin_ws/src/navigation_2d-master/nav2d_tutorials/launch/tutorial2.launch Please specify full path instead The traceback for the exception was written to the log file

Then I tried to write the path but it did not work roslaunch nav2d_tutorials /home/hjt/catkin_ws/src/navigation_2d-master/nav2d_tutorials/launch/tutorial2.launch

What should I do, so I'm able to run the simulation with edited launch files ?

answered 2016-02-01 09:05:24 -0500

Sebastian Kasperski

1658 ●7 ●18 ●35

updated 2016-02-02 07:08:06 -0500

Looks like you have both the binary version (in /opt/ros/indigo/...) and the source version (in /home/hjt/catkin_ws/src/...) installed. So make sure you build using catkin so the source version can correctly override the binary version.

cd /home/hjt/catkin_ws
source /opt/ros/indigo/setup.bash
catkin_make
source /home/hjt/catkin_ws/devel/setup.bash

Now after you build your workspace, you always have to source the setup.bash from this workspace in order to use it, not the one from /opt/ros/... Try this first, because as far as I know it should be no problem to have a package both as binary and source installed. Only if it doesn't work, try uninstalling the nav2d-binaries.

And yes, you shouldn't manually change anything in /opt/ros/.... But it is no problem to remove packages using the package manager of your choice (e.g. Synaptic) or just apt-get on the command line:

sudo apt-get remove ros-indigo-nav2d

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Unfortunately it did not worked even when I run source /opt/ros/indigo/setup.bash and then catkin_make

RosUser ( 2016-02-01 09:36:51 -0500 )edit

Have you tried un-installing the binary version?

Sebastian Kasperski ( 2016-02-02 04:40:31 -0500 )edit

No,because I have been told that I should not touch or edit anything in ROS installation folder! And I'm not sure how to un-install all nav2d packages so it dos not have any influence on other thing?

RosUser ( 2016-02-02 05:11:16 -0500 )edit

Thank you so much Sebastian for helping, I'm now able to run the simulation from my catkin_ws. I'm just missing the Robot icon in the RVIZ simulation but that is maybe because of I'm using Ros Indigo and as you mentioned befor that URDF was not supported.

RosUser ( 2016-02-02 09:16:57 -0500 )edit

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