Unable to Connect to Real Robot

ROSDS Support
1

Here is the error from the linux terminal

user:~$ roslaunch turtlebot3_teleop turtlebot3_teleop_key.launch

… logging to /home/user/.ros/log/805a80ac-3f6d-11ef-af0b-0242ac180002/roslaunch-3_xterm-2357.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://3_xterm:39801/

SUMMARY

PARAMETERS

  • /model: burger
  • /rosdistro: noetic
  • /rosversion: 1.15.11

NODES
/
turtlebot3_teleop_keyboard (turtlebot3_teleop/turtlebot3_teleop_key)

RLException: ERROR: unable to contact ROS master at [http://master:11311]
The traceback for the exception was written to the log file

2

Hi @nazibchowdhury000,

Thanks for reporting the error.

We will investigate this issue and come back to you.

3

Hi again, @nazibchowdhury000,

We are now detecting when this problem happens.

When it happens, you should now see a yellow badge with instructions to disconnect and connect to the robot again, like in the image below.

Thank you very much for reporting the issue, because it allowed us to investigate the issue a bit deeper.

#KeepPushingYourROSLearning

robot-disconnected

4

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