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rosout symbol lookup error

asked 2020-04-21 11:17:27 -0600

albert ciurana gravatar image

HI all, I am introducing to ROS and I am trying to follow the beginner tutorials. I've got an error when launching roscore:

auto-starting new master
process[master]: started with pid [13983]
setting /run_id to 4de83cb2-83de-11ea-bdee-acfdce903724
process[rosout-1]: started with pid [13994]
started core service [/rosout]
/opt/ros/melodic/lib/rosout/rosout: symbol lookup error: /opt/ros/melodic/lib/ undefined symbol: _ZN7log4cxx16AppenderSkeleton9setOptionERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES8_
[rosout-1] process has died [pid 13994, exit code 127, cmd /opt/ros/melodic/lib/rosout/rosout __name:=rosout __log:=/home/albert/.ros/log/4de83cb2-83de-11ea-bdee-acfdce903724/rosout-1.log].
log file: /home/albert/.ros/log/4de83cb2-83de-11ea-bdee-acfdce903724/rosout-1*.log
[rosout-1] restarting process

It seems to be an error with some kind of symbol from /opt/ros/melodic/lib/ that causes an exit code 127 to rosout. It is repeating all the time the same error in new processes.

I have Melodic full desktop installation on Ubuntu 18.04. New installation clean and updated without any broken packages.

What do you think is it happening?

Thanks in advance!

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answered 2020-04-30 05:37:00 -0600

albert ciurana gravatar image

Finally I found the problem.

It was a library mismatch due to ${LD_LIBRARY_PATH} path order to find library.

I had another software that uses its own and includes it from another path that was preeminent in order. I found it executing:

ldd /opt/ros/melodic/lib/

to see which libraries it is using, and I got that was not the /lib/x86_64-linux-gnu/

The solution is to change the path order in ${LD_LIBRARY_PATH}, or execute roscore as:

LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/:$LD_LIBRARY_PATH roscore

Problem solved.

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Hello, thank you for your answer it helps me a lot. I got this error while I was trying to install bostondyn_healthcare package it might be the same issue for you?

alexltz gravatar image alexltz  ( 2020-05-06 12:09:18 -0600 )edit

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Asked: 2020-04-21 11:17:27 -0600

Seen: 983 times

Last updated: Apr 30 '20