Missing texture.txt file

[SPA2020]

Can anyone help me? I am trying to run my new K&L Trainz Class J 611 doubleheaded with my K&L Trainz A 1218, but the route did not show up in my surveyor, so I went to my Content Manager to find my route sesssion and it said this:

Error: The *.texture.txt file is missing for texture resource 'norfolk_western.texture'.


Does anyone have any tips or suggestions on what to do?

Thank you,

Steven