I have Turtlebot, running Indigo.
I'm able to run rviz on my machine
rosrun rviz rviz
and able to see camera input and other topics from rviz on my machine,
But running:
roslaunch turtlebot_rviz_launchers view_navigation.launch
Gives the following error
Unable to contact my own server at [http://robot.mydomain.mz:35483/]. This usually means that the network is not configured properly.
A common cause is that the machine cannot ping itself. Please check for errors by running:
ping robot.mydomain.mz
For more tips, please see
http://www.ros.org/wiki/ROS/NetworkSetup The traceback for the exception was written to the log file
I can ping the robot machine on "robot.domain.com", and from the robot machine it can ping itself and my machine (testing from ssh), also netcat works fine from the two sides !
In my machine I have the following environment variable
export ROS_MASTER_URI=http://robot.mydomain.mz:11311
export ROS_HOSTNAME=robot.mydomain.mz
export ROS_IP=<robot machine IP>
On the Trutlebot machine
ROS_MASTER_URI=http://localhost:11311
ROS_HOSTNAME=robot.mydomain.mz
ROS_IP=<robot machine IP>
I noticed that application/tools running using rosrun works fine from my machine and connect to the Turtlebot without any issues, like:
rosrun kobuki_dashboard kobuki_dashboard <Works fine>
While, tools starting using roslaunch all having the same issue
roslaunch turtlebot_dashboard turtlebot_dashboard.launch <gives the same error>
EDITED: Replace robot.domain.com by robot.mydomain.mz (to show that this just an example)
Originally posted by MZAIADY on ROS Answers with karma: 38 on 2016-12-02
Post score: 0
Original comments
Comment by gvdhoorn on 2016-12-02:
Just to make sure: 66.96.162.92 is an IP you own? And robot.domain.com is also a domain name you own? And your "robot machine" actually has the 66.96.162.92 ip configured?
Comment by MZAIADY on 2016-12-02:
I used only IP before, which I get using ifconfig, but the got the same issues (only roslaunch not working), then I used machine names (after setting hostnames and mapped IP in /etc/hosts), but I had same issue, then i created my own DNS server/ domain mapping and the same issue still there
Comment by MZAIADY on 2016-12-02:
Note: "robot.domain.com" is just example for the question, not actual domain I'm using, which I have configured in Bind9 DNS server
Comment by shoemakerlevy9 on 2016-12-02:
How do you set the environment variables? Bashrc? manually when you open a terminal? or some other method?
