gazebo not opening with the .so file

[madhu-korada]

gzserver: symbol lookup error: /home/madhu/work/gazebo_map_creator_ws/install/gazebo_map_creator/lib/libgazebo_map_creator.so: undefined symbol: _ZN10gazebo_ros4Node3GetEv

When I try to run gazebo -s libgazebo_map_creator.so myworld.world command I get the above issue.
What could be the issue here?

[arshadlab]

Looks like you haven't sourced ROS2 env before initiating gazebo launch.
e.g source /opt/ros/<humble|foxy>/setup.bash

[madhu-korada]

I don't think that is the case. I have sourced the environments correctly. But I also have ROS 1 in my environment, could that cause this issue?

[webtjs]

I also faced this issue and I too have both ROS 1 (Noetic) and ROS 2 (Foxy) installed on my system. I managed to find a solution which involves modifying the ~/.bashrc file. When I previously installed ROS 1, I ran echo "source /opt/ros/noetic/setup.bash" >> ~/.bashrc in my shell which automatically sources ROS 1 whenever a shell is opened. Hence when sourcing ROS 2, two different versions of ROS are being sourced in the same environment. This results in issues with the rosdep tool, and might also be what's causing this issue wth gzserver.

After opening the ~/.bashrc file and removing the line source /opt/ros/noetic/setup.bash, I created a new workspace and followed the guide again which got it to work.