Nav in 5 Days example 1.1 robot does not move

Course Support ROS Navigation In 5 Days
1

I am trying to do exercise 1.1 in shell #1 I ran:

roslaunch turtlebot_navigation_gazebo gmapping_demo.launch

in shell #2 I ran:

roslaunch turtlebot_teleop keyboard_teleop.launch

However the robot in the simulator does not move. When I try to manually send /cmd_vel via ‘rostopic pub’ the robot still does not move. Is there something wrong with the simulation?

2

I reloaded the simulation and now it seems to work. weird

3

Sometimes Gazebo can crash and the best way to solve it is to reload the simulation. Good that you could solve it by yourself!