I have set the following options for the compiler:

Command:
C:\Users\Lapstore\Steam\steamapps\common\Left 4 Dead 2\bin\propper.exe

Parameters:
-game $gamedir $path\$file

but compilation is not successful...

I am using the new Propper that works with Steam Pipe, but maybe someone can help me.

I followed the instructions and indicated the correct data for the compiler, but during compilation I get the following text:

-------------------------------------------------------------------------------
Running command: cd "C:\Users\Lapstore\Steam\steamapps\common\Left 4 Dead 2\bin"
-------------------------------------------------------------------------------

-------------------------------------------------------------------------------
Running command: C:\Users\Lapstore\Steam\steamapps\common\Left 4 Dead 2\bin\propper.exe -game "C:\Users\Lapstore\Steam\steamapps\common\left 4 dead 2\left4dead2" "c:\users\lapstore\steam\steamapps\common\left 4 dead 2\sdk_content\mapsrc\np_shelf_empty_a"
-------------------------------------------------------------------------------

Finished. Press a key to close.

For some reason, when I import the model into a different version of Hammer (in my case, the TF2 Hammer editor located in Team Fortress 2\bin\hammer.exe), the model appears with error textures and when I try to compile it, it fails to load the vertex data. I would really appreciate if someone told me how to fix this. Thanks!

Thanks I really needed this

I get a bug when trying to compile the map after having added the model: "unable to load vertex data "models/props/XXX.vvd" " Please help

Oh ok that's what I did, had the wrong directory. Thanks for the reply and the guide!

extract the css materials folder from the vpk with GCFscape http://nemesis.thewavelength.net/index.php?p=26

then copy past that into the propper mod, respecting the folder hierarchy from the css vpk.

How do you get css textures to work?

You, yes, you!

YOU ARE THE BEST

Thank you VERY much!!!