[MEW273]

It works fine for me, does your code look similar to this:
gamemodes - gamemode.pwn

Код:

#include "functions.pwn"

gamemodes - functions.pwn

Код:

#include "functions/function_one.pwn"

gamemodes/functions - function_one.pwn

Код:

stock ClearChatForPlayerID(playerid)
{
    for(new i; i != 75; i++)
	{
		SendClientMessage(playerid, 0xFFFFFFFF, "");
	}
	return 1;
}

Edit: Are you aware when including files that are in your gamemodes folder and not in the pawno/include folder that you should use #include "include_name.pwn" with quotation marks instead of #include <include_name>