"The system cannot find the file specified" - No errors

[TheMikirog]

Hey there!
I was mapping for a two weeks and now I can't compile my map, because of this pesky error standing in my way. Suddenly, stopped working. How? I don't know!
This is my compile log:

** Executing...
** Command: Copy File
** Parameters: "D:\grass.bsp" "\grass.bsp"

The command failed. Windows reported the error:
  "Nie można odnaleźć określonego pliku."

Btw. the last line stands for "The system cannot find the file specified".

No clues. When I press ALT+P it says there is no errors. Map compiled earlier just fine, but now it can't.
List of thing I have done:
- Changed the map name.
- Trying different hammers (TF2 and Gmod one)
- Trying Source SDK one, but ended with an "Failed to load the deafult scheme file".
- Trying Source Multi-Tool, but ended with being unable to set custom config.
- Saved the map as simple as possible with a simple word.
- Cleaned my computer's registry.
- Launched the game I was modding for.
- Compiling a blank map without any entities.
- Checked for viruses. Nothing found.

I'm getting pissed off and I really need help.
On this and other forums I've found more topics with the same problem, but there were problems with maps, but here it's nothing.
Every attempt to help me is welcome here. Who will solve this, will deserve a medal.

[Raphi]

I use to have it sometime

There is something wrong in your map.
Firstly try to test Auto-save (if you have them) compile them until it work.
If you can't, compile your map part by part, with this [IMG]http://www.interlopers.net/images/hl2tutorials/visibility/cordon2.jpg[/IMG]
Take a little part, if it work a bigger etc, until you won't be able to compile.
At this moment, you'll know that your problem will come from the last part you've added.
It use to be displacement / wrong blocks.

[TheMikirog]

[QUOTE=onebit;47457122]Any entities with special characters? ´¨'*@"
Try running whichever game you're compiling for.
Send the vmf to someone and see if they can compile.[/QUOTE]

No entities. Even with a map that only contains one block. I modded for Garry's Mod. Ran it, nothing happened.

[QUOTE=Raphi;47457173]I use to have it sometime

There is something wrong in your map.
Firstly try to test Auto-save (if you have them) compile them until it work.
If you can't, compile your map part by part, with this [IMG]http://www.interlopers.net/images/hl2tutorials/visibility/cordon2.jpg[/IMG]
Take a little part, if it work a bigger etc, until you won't be able to compile.
At this moment, you'll know that your problem will come from the last part you've added.
It use to be displacement / wrong blocks.[/QUOTE]
See response above.
Hammer REFUSES to compile in any way. Partial or not.

[Raphi]

Copy/paste your map in an other one new and try to compile

[TheMikirog]

Nevermind.
I just had to configure compiling programs.
Why they haven't included this part in the tutorial?