rviz2 crashes during launch because of rcl_logging_spdlog undefined symbol

[ClemensLinnhoff]

I am using ROS2 Humble on Ubuntu 22.04.

When I try to start rviz2, it crashes during launch with the following error:

rviz2
[INFO] [1702033731.572901130] [rviz2]: Stereo is NOT SUPPORTED
rviz2: symbol lookup error: /opt/ros/humble/lib/librcl_logging_spdlog.so: undefined symbol: _ZN6spdlog7details7log_msgC1ENS_10source_locEN3fmt2v817basic_string_viewIcEENS_5level10level_enumES6_

Any idea, where this is coming from? I also tried to uninstall and reinstall ROS completely, but that did not help.

[clalancette]

The missing symbol is from the spdlog library, which underlies the logging in ROS. I suspect that you are using a different spdlog than the usual, but I'm not sure. Can you do the following:

1. Source your humble installation (source /opt/ros/humble/setup.bash)
2. Run ldd /opt/ros/humble/lib/librcl_logging_spdlog.so
3. Run dpkg -l | grep spdlog

And paste all of the output here.

[ClemensLinnhoff]

You are right! spdlog seems to be taken from my Nvidia IsaacSim installation:

libspdlog.so.1 => /home/clemens/.local/share/ov/pkg/isaac_sim-2023.1.0/exts/omni.isaac.ros2_bridge/humble/lib/libspdlog.so.1 (0x00007f6f4dc54000)

The output of the last command is:

ii  libspdlog-dev:amd64                               1:1.9.2+ds-0.2                          amd64        Very fast, header only or compiled, C++ logging library
ii  libspdlog1:amd64                                  1:1.9.2+ds-0.2                          amd64        Very fast C++ logging library
ii  ros-humble-rcl-logging-spdlog                     2.3.1-1jammy.20231117.180431            amd64        Implementation of rcl_logging API for an spdlog backend.
ii  ros-humble-spdlog-vendor                          1.3.1-1jammy.20231117.174822            amd64        Wrapper around spdlog, providing nothing but a dependency on spdlog, on some systems.

Any idea on how to fix this?

[clalancette]

Any idea on how to fix this?

You'll need to use the system spdlog, otherwise things definitely won't work. I guess you should remove the /home/clemens/.local from your paths, probably LD_LIBRARY_PATH and PATH. If you can't do that, then you'll have to build Humble from source: http://docs.ros.org/en/humble/Installation/Alternatives/Ubuntu-Development-Setup.html

Since this isn't a problem with this package, I'm going to close this one out.

[ClemensLinnhoff]

That's it! Thank you very much!