problems loading models in gazebo

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Can you specify which file are you launching for the turtlebot and if possible can you provide the world file and the launch files? Thanks

I will still mention the procedure to use custom world in the gazebo, (I assume your pkg is at ~/catkin_ws/src/my_pkg)

• mkdir ~/catkin_ws/src/my_pkg/worlds

• cd ~/catkin_ws/src/my_pkg/worlds

• touch my_world.world

• Put all your models in the world file (you can use various mesh formats like .dae .stl or even robot format .urdf)

• To be able to use the custom models from ~/catkin_ws/src/my_pkg/models you need to put this in your ~/catkin_ws/src/my_pkg/package.xml <run_depend>gazebo_ros</run_depend> <export> <gazebo_ros gazebo_model_path="${prefix}/models"/> <gazebo_ros gazebo_media_path="${prefix}/models"/> </export>

• echo "export GAZEBO_MODEL_PATH=$GAZEBO_MODEL_PATH:$HOME/catkin_ws/src/"

NOTE: I am using this tutorial as a referance. if there is any typo PLMK

You can copy & paste your model of the labyrinth in your /home/${USER}/.gazebo/models and then create a world with it inside (Gazebo should have this model loaded then). Maybe your building_editor_models folder isn'a added to the GAZEBO_MODEL_PATH too (e.g. in ~/.bashrc like this: export GAZEBO_MODEL_PATH=$GAZEBO_MODEL_PATH:~/model_editor_models). Suggestions from @aarsh_t and @shonigmann are good too, please check them.