In "Add the necessary displays", i can't find topic stl_mesh and scenario

[SmallStrawHat]

Add the necessary displays:

‘Path’ on topic ‘visualization_marker’
‘Marker’ on topic ‘viewpoint_marker’
‘Path’ on topic ‘stl_mesh’
‘Marker’ on topic ‘scenario’

To display the progress, chose ‘/kopt_frame’ as fixed frame or publish a suitable transform.

In the above steps, i can't add ‘Path’ on topic ‘stl_mesh’. So, the same as ‘Marker’ on topic ‘scenario’.
I also cannot find the fixed frame ‘/kopt_frame’.
Can you help me?

try running the other launch files in request launch folder