What do I understand from the error "process has died [pid: 4917 exit code-6]

I am trying to implement the navigation stack and get this error when I launch the move_base.launch as given in the tutorial http://wiki.ros.org/navigation/Tutorials/RobotSetup

Asked by RS on 2015-06-19 12:26:45 UTC

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Exit code -6 means that the program was terminated by signal 6, which is SIGABRT.

Have a read through https://en.wikipedia.org/wiki/Unix_signal to understand what sorts of signals are possible, and the bash section of https://en.wikipedia.org/wiki/Exit_status#Bash_shell_and_script to understand how those signals become exit codes.

In the context of ROS, this probably means that something called ROS_ABORT(), which isn't very helpful. You should probably look at the rest of the output from move_base to get a better idea of why it decided to abort.

Asked by ahendrix on 2015-06-19 13:34:17 UTC

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Thanks for the input! I realised the mistake I was making.

Asked by RS on 2015-06-22 11:26:01 UTC