win7编译WDK出错,代码是微软的事例代码

错误代码如下:
0>Bad Path string: L'g:\ F '

1>errors in directory g:\驱动开发\src\audio\ac97\cpl
1>g:\驱动开发\src\audio\ac97\cpl\makefile(22) :
error U1054: cannot create inline file 'g:\CONCURRENT_MIDL=0\objchk_wxp_x86\i386\c1>nmake.exe /
nologo BUILDMSG=Stop. -i BUILD_PASS=PASS1 NOLINK=1 NOPASS0=1 MAKEDIR_RELATIVE_TO_BASEDIR=src\audio\ac97\cpl failed - rc = 2

2>errors in directory g:\驱动开发\src\audio\ac97\proppage
2>g:\驱动开发\src\audio\ac97\proppage\makefile(22) : error U1054:
cannot create inline file 'g:\CONCURRENT_MIDL=0\objchk_wxp_x86\i386\c2>nmake.exe /
nologo BUILDMSG=Stop. -i BUILD_PASS=PASS1 NOLINK=1 NOPASS0=1 MAKEDIR_RELATIVE_TO_BASEDIR=src\audio\ac97\proppage failed - rc = 2

1>errors in directory g:\驱动开发\src\audio\ac97\driver
1>g:\驱动开发\src\audio\ac97\driver\makefile(22) : error U1054:
cannot create inline file 'g:\CONCURRENT_MIDL=0\objchk_wxp_x86\i386\ech1>nmake.exe /
nologo BUILDMSG=Stop. -i BUILD_PASS=PASS2 LINKONLY=1 NOPASS0=1 MAKEDIR_RELATIVE_TO_BASEDIR=src\audio\ac97\driver failed - rc = 2

要用他那个自带的 x64 Free Build Environment