After building a ROS package which requires gazebo9 dependency, my gazebo stoped working. I already had gazebo9 working in my system prior to this.
In my terminal I use the 'gazebo --verbose` command line:
gazebo: symbol lookup error: /usr/lib/x86_64-linux-gnu/libgazebo_common.so.9: undefined symbol: _ZN8ignition10fuel_tools12ClientConfig12SetUserAgentERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE
I don't want to have to reinstall gazebo9 if I don't have to. Is there a way to fix this problem without doing so?
According to other forum you should upgrade one library via
$ sudo apt upgrade libignition-math2
or some other workaround by running the gazebo command as
$ LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libignition-fuel_tools2.so.2 gazebo