Launch Simulation Package export TURTLEBOT3_MODEL=burger ros2 launch turtlebot3_gazebo empty_world.launch.py 에러 해결 출처 package 'turtlebot3_gazebo' not found, searching: ['/opt/ros/foxy'] Error, 에러 코드 Package 'turtlebot3_gazebo' not found: "package 'turtlebot3_gazebo' not found, searching: ['/opt/ros/foxy']" Error → Solution sudo apt install ros-foxy-turtlebot3-gazebo set env export TURTLEBOT3_MOD.....
