launching Gazebo error

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Hi

I have Unbunt 16.04 and ROS kinetic.

In the terminal, running the command gazebo opens Gazebo7

when I try to roslaunch myfile.launch ( which works perfectly in another device), I got error that:

/opt/ros/kinetic/lib/gazebo_ros/gzserver: 31: .: Can't open /usr/local/share/gazebo//setup.sh
/opt/ros/kinetic/lib/gazebo_ros/gzclient: 31: .: Can't open /usr/local/share/gazebo//setup.sh
[gazebo-5] process has died [pid 4542, exit code 2, cmd /opt/ros/kinetic/lib/gazebo_ros/gzserver -e ode worlds/empty.world __name:=gazebo __log:=/home/evadro/.ros/log/d1002e94-94a8-11eb-8f41-b25c5df1f650/gazebo-5.log].
log file: /home/evadro/.ros/log/d1002e94-94a8-11eb-8f41-b25c5df1f650/gazebo-5*.log
[gazebo_gui-6] process has died [pid 4547, exit code 2, cmd /opt/ros/kinetic/lib/gazebo_ros/gzclient __name:=gazebo_gui __log:=/home/evadro/.ros/log/d1002e94-94a8-11eb-8f41-b25c5df1f650/gazebo_gui-6.log].
log file: /home/evadro/.ros/log/d1002e94-94a8-11eb-8f41-b25c5df1f650/gazebo_gui-6*.log

Actually, there is no gazebo directory inside /usr/local/share/

Rviz loads, but Gazebo does not load !

How can I fix this issue?