I installed a docker container with gazebo

source: https://github.com/osrf/docker_images/blob/1154349c9f81a11ce50d73fd2e07020f4eb7c0b9/gazebo/8/ubuntu/xenial/libgazebo8/Dockerfile

After this i installed ros kinetic on the container. I want to launch robots ( turtlebot in this case ) so they go in gazebo.

When i run roslaunch turtlebot_gazebo turtlebot_world.launch i get the next error.

[gazebo-2] process has died [pid 21045, exit code 255, cmd /opt/ros/kinetic/lib/gazebo_ros/gzserver -e ode /opt/ros/kinetic/share/turtlebot_gazebo/worlds/playground.world __name:=gazebo __log:=/root/.ros/log/e3d818a2-db5f-11e7-b4d8-0242ac110002/gazebo-2.log].
log file: /root/.ros/log/e3d818a2-db5f-11e7-b4d8-0242ac110002/gazebo-2*.log
process[mobile_base_nodelet_manager-5]: started with pid [21117]
[ERROR] [1512659056.545081096]: Skipping XML Document "/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml" which had no Root Element.  This likely means the XML is malformed or missing.
process[cmd_vel_mux-6]: started with pid [21130]
process[bumper2pointcloud-7]: started with pid [21161]
process[robot_state_publisher-8]: started with pid [21244]
process[laserscan_nodelet_manager-9]: started with pid [21293]
[ERROR] [1512659057.038785872]: Skipping XML Document "/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml" which had no Root Element.  This likely means the XML is malformed or missing.

Any help on how to fix this is really appreciated