I'm trying to run turtlebot_gazebo but I have some problems. Here's the subject in details. I'm running ROS kinetic which is supposed that it can't link to gazebo as far as I know. I installed gazebo with the help of your site, however, the package I got and installed was called turtlebot_simulator, and turtlebot_gazebo was inside it (if I misunderstood the thing let me know). I tried to launch it using " $roslaunch turtlebot_gazebo turtlebot_world.launch" but this didn't work. Finally, I browsed to folder "launch" inside turtlebot_gazebo and tried to launch it using "$ roslaunch turtlebot_world.launch" and it gives me the following error: