跪求第一个驱动除错

以下是first.c
#include<ntddk.h>
VOID DriverUnload(PDRIVER_OBJECT driver)
{
DbgPrint("first:Our driver is unloading...\r\n");
}

NTSTATUS DriverEntry(PDRIVER_OBJECT driver,PUNICODE_STRING reg_path)
{
DbgPrint("firs:hello");
driver->DriverUnload=DriverUnload;
return STATUS_SUCCESS;
}

以下是MakeFile
!IF 0

Copyright (C) Microsoft Corporation, 1999 - 2002

Module Name:

    makefile.

Notes:

    DO NOT EDIT THIS FILE!!!  Edit .\sources. if you want to add a new source
    file to this component.  This file merely indirects to the real make file
    that is shared by all the components of Windows NT (DDK)

!ENDIF
!INCLUDE $(NTMAKEENV)\makefile.def

以下是SOURCES
TARGETNAME=first
TARGETTYPE=DRIVER
TARGETPATH=obj
SOURCES=first.c

用WDK的xpCheck版build出2个警告0个可执行文件，请问究竟错在哪里啊,才学写驱动哦！
ERROR - "f:\first\objchk_wxp_x86\i386\_objects.mac" file time is slightly in the future (0x1caab11370ef000 (2/11/2010 11:56:16) vs. 0x1caab1135e9aec2 (2/11/2010 11:56:14)).

你尝试先把上面提示的这个文件删除再试试看

我编译的没有问题啊，是不是你环境没安装好呢

原来是警告而已