'I am also getting this error on ROS realsense D435 camera. The code I wrote "roslaunch realsense2_camera rs_rgbd.launch"

Error message:

opt/ros/noetic/lib/nodelet/nodelet: symbol lookup error: /home/ubuntu/catkin_ws/devel/lib//librealsense2_camera.so: undefined symbol: _ZN20ddynamic_reconfigure19DDynamicReconfigureC1ERKN3ros10NodeHandleE
[camera/realsense2_camera_manager-2] process has died [pid 13033, exit code 127, cmd /opt/ros/noetic/lib/nodelet/nodelet manager __name:=realsense2_camera_manager __log:=/home/ubuntu/.ros/log/bb60da40-105c-11ec-bdf8-27733b72faf1/camera-realsense2_camera_manager-2.log].
log file: /home/ubuntu/.ros/log/bb60da40-105c-11ec-bdf8-27733b72faf1/camera-realsense2_camera_manager-2*.log
[camera/realsense2_camera-3] process has finished cleanly
log file: /home/ubuntu/.ros/log/bb60da40-105c-11ec-bdf8-27733b72faf1/camera-realsense2_camera-3*.log
pythonubuntuintelrosrealsense


Solution 1:[1]

There are a couple different issues that could cause this problem. First, this can be caused by having more than one installation of dynamic_reconfigure on your system. You should also make sure you're CMakeLists.txt includes image_geometry in its call to find_package.

Solution 2:[2]

I had the same problem. it was caused by having ddynamic_reconfigure repo inside src/ and already installed ddynamic_reconfigure using apt

sudo apt install ros-melodic ros-melodic-ddynamic-reconfigure.

Fixed by removing src/ddynamic_reconfigure/ and rebuilding.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 BTables
Solution 2 Saman Salehi

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