Hi.
I have followed the tutorial on ROS and have some problems running the examples.
OS: Ubuntu 18.04.5
Attached is the output from the terminal when i run
'roslaunch tiago_gazebo tiago_gazebo.launch public_sim:=true robot:=steel'
tiago_gazebo.launch.LOG
Here is the output from rqt_graph

And here is the project tree(I have made no changes to this after downloading)
project_tree.LOG