Q: I created a custom gazebo world for my turtleBot containing several walls and saved it as a .world file. However when I run the world file the walls that i created do not load.
A: Here you can see a simple example of how to launch a simple Gazebo world with a wall in it.
Related ROS Answers Question: https://answers.ros.org/question/277170/custom-gazebo-world-doesnt-load/
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