I have a TurtleBot hardware. It has an in build Astra Camera. I setup the Astra camera using the this link. After that, I ran the command roslaunch astra_camera astra.launch. I received the output :

I’m trying to spawn a urdf model in gazebo ,this is the error which I’m getting while running launch file.
i am new in this, any guidance would be appreciated.

I have created a lanelet2 map for autonomous path planning but I dont know how to use this map. I have searched all over the web but couldn’t find anything.