rrt_exploration rviz no map received error
I have to use rrt exploration for a project, but whenever I run the rrt exploration lauch files and the rrt exploration tutorials launch files, I get a no map received
error in the Map topics. What is the solution to this? Thanks in advance.
PS: I'm using Ubuntu 16.04 ROS Kinetic (Ubiquity Robotics version)
roslaunch my_pkg my_file.launch
or so on.I executed
roslaunch rrt_exploration_tutorials single_simulated_house.launch
then i get this no map received error. sorry for error log i cannot reach that log now.