oh :(

And if you don't have CS:S nor its textures installed/mounted you can check tutorials online, I can't help you further on that.

If you're talking about CS:S textures you need to have the game (Counter-Strike: Source), if you're talking about the custom textures, you can download them from GameBanana (check the link in the description named "Real World Textures 2") and extract them into your game materials folder, that's all I know you can do.

is it in workshop?

how to download it

I remember packing all the custom textures I downloaded into the file, so try checking if you have CS:S (or its textures) installed and mounted. If you already do have them installed, try and download the textures i've linked in the description.

its not working there are soo much non installed textures