clone this to src of your workspace go to your workspace
cd ..
make with catkin_make
catkin_make
source
source devel/setup.bash
To launch 1st map
roslaunch multi_robot main.launch
To launch 2nd map
roslaunch multi_robot main_world_2.launch
To launch 3rd map
roslaunch multi_robot main_world_3.launch
To launch 4th map
roslaunch multi_robot main_world_4.launch
To navigate run navs.py
rosrun multi_robot navs.py