Hello

I would like to use together Gazebo, ROS and citysim. Currently, I am using ROS-kinetic with Gazebo7. How to install Gazebo 9 instead Gazebo 7 without influence to ROS?

sudo apt-get install libgazebo9-dev

Reading package lists... Done Building dependency tree
Reading state information... Done

The following additional packages will be installed:

gazebo9 gazebo9-common gazebo9-plugin-base libavdevice-dev libavfilter-dev libavresample-dev libgazebo9 libignition-cmake-dev libignition-common libignition-common-dev libignition-fuel-tools libignition-fuel-tools-dev libignition-math4 libignition-math4-dev libignition-msgs libignition-msgs-dev libignition-transport4 libignition-transport4-dev libpostproc-dev libsdformat6 libsdformat6-dev libyaml-dev libzmq3-dev sdformat-sdf

Suggested packages:

gazebo9-doc libyaml-doc The following packages will be REMOVED:

gazebo7 gazebo7-common gazebo7-plugin-base libgazebo7 libgazebo7-dev libsdformat4 libsdformat4-dev ros-kinetic-desktop-full ros-kinetic-gazebo-dev ros-kinetic-gazebo-plugins ros-kinetic-gazebo-ros ros-kinetic-gazebo-ros-control ros-kinetic-gazebo-ros-pkgs ros-kinetic-simulators

The following NEW packages will be installed:

gazebo9 gazebo9-common gazebo9-plugin-base libavdevice-dev libavfilter-dev libavresample-dev libgazebo9 libgazebo9-dev libignition-cmake-dev libignition-common libignition-common-dev libignition-fuel-tools libignition-fuel-tools-dev libignition-math4 libignition-math4-dev libignition-msgs libignition-msgs-dev libignition-transport4 libignition-transport4-dev libpostproc-dev libsdformat6 libsdformat6-dev libyaml-dev libzmq3-dev

The following packages will be upgraded:

sdformat-sdf