turtlebot_rviz_launchers without running turtlebot
Hello,
I try to simulate a turtlebot, because the batteries for my turtlebot were not delivered and I'm waiting for them now.
Running a Gazebo world works fine with the following line: roslaunch turtlebot_gazebo turtlebot_world.launch
However, when I try to run Rviz with the following line: roslaunch turtlebot_rviz_launchers view_robot.launch
It gives me an error that says: [view_robot.launch] is neither a launch file in package [turtlebot_rviz_launchers] nor is [turtlebot_rviz_launchers] a launch file name
What is the reason for this? Do I have to install the packages in some way or do I need a running turtlebot in order to run Rviz?