ERROR: Unable to communicate with master! when launching real robot lab on gazebo

RLException: ERROR: unable to contact ROS master at [http://4_simulation:11311]
The traceback for the exception was written to the log file

Hi @horth.alec ,

I ran into that issue once or twice. The solution (that worked for me) was to clear history and cookies of your browser and login again into The Construct Sim and load rosject simulation studio.

This may not be the working solution, but it has worked in my case.

Let me know if the same worked for you.


1 Like

Hello @girishkumar.kannan,

thank you for your answer :slight_smile: Alright I will try and keep you on touch if it worked.

best regards

It worked ! thank you

1 Like

@horth.alec ,

Glad to know it worked for you too!

— Girish

This topic was automatically closed after 20 hours. New replies are no longer allowed.