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My turtlebot3 burger do not move when I publish to /cmd_vel


I have a turtlebot3 burger and I want to play with it. I established ssh connection with robot successfully and I can see /cmd_vel topic when I run rostopic list command.

However, when I try to publish in /cmd_vel the robot do not do anything. I tried to run roslaunch turtlebot3_teleop turtlebot3_teleop_key.launch to control the robot from keyboard but still not working.

This is my .bashrc file:

export TURTLEBOT3_MODEL=burger

source /opt/ros/kinetic/setup.bash
source /home/ovidiu/catkin_ws/devel/setup.bash
source /home/ovidiu/perception_catikin_ws/devel/setup.bash

I use Kinetic ROS on Ubuntu 16.04 LTS.

I don't receive any error in console, just the robot do not move.

Am I missing something?