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uos / sick_tim

A ROS driver for the SICK TiM series of laser scanners.
http://wiki.ros.org/sick_tim
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Symbol lookup error when running from 0.0.10 binary #46

Closed bennilson closed 7 years ago

bennilson commented 7 years ago

I'm trying to run this package installed via apt-get (ros-indigo-sick-tim 0.0.10-0trusty-20170107-080548-0800). However, when i try running a launch file i get: /opt/ros/indigo/lib/sick_tim/sick_tim551_2050001: symbol lookup error: /opt/ros/indigo/lib/sick_tim/sick_tim551_2050001: undefined symbol: _ZN8sick_tim13SickTimCommon13rebootScannerEv

I can download the source, build it, and it runs fine. This seems to point to an issue with the way it installs. Has anyone seen this issue or know what is causing it?

I'm running ROS Indigo on Ubuntu 14.04. Thanks!

mintar commented 7 years ago

I have just checked it and cannot reproduce the bug. For me, it works fine using the exact same version you are using. I suspect your LD_LIBRARY_PATH is not set correctly. This is how mine looks:

$ echo $LD_LIBRARY_PATH 
/opt/ros/indigo/lib/x86_64-linux-gnu:/opt/ros/indigo/lib

... and the missing symbol is defined in /opt/ros/indigo/lib/libsick_tim_3xx.so:

$ objdump -TC /opt/ros/indigo/lib/libsick_tim_3xx.so | grep $(c++filt _ZN8sick_tim13SickTimCommon13rebootScannerEv)
0000000000026210 g    DF .text  0000000000000974  Base        sick_tim::SickTimCommon::rebootScanner()
bennilson commented 7 years ago

You are correct. My LD_LIBRARY_PATH was going through another workspace (which had a source copy), set in my bashrc, that I was overriding. After I removed the other workspace sourcing from my bashrc, my LD_LIBRARY_PATH looked like yours and then it worked correctly.

Thanks for your help with this.

mintar commented 7 years ago

Glad to have helped! :)