# Need HELP! [turtlebot3_fake.launch] is neither a launch file in package

Hi. I am a very new to ROS and turtlebot I'm just want to follow this tutorial. I do the same as the artical said I have install turtlebot3 turtlebot3_msgs and turtlebot3_simulation But I got this error while trying to run

roslaunch turtlebot3_fake turtlebot3_fake.launch


Add I got this error :

RLException: [turtlebot3_fake.launch] is neither a launch file in package [turtlebot3_fake] nor is [turtlebot3_fake] a launch file name