opal 编译的 出现的问题 求高手赐教啊

Command Lines Creating temporary file "C:\ptlib-opal\trunk\Debug\Debug\BAT0000EF3482876.bat" with contents
[
@echo off

MergeSym -I "C:\ptlib-opal\opalvoip-trunk[1]\trunk\ptlib\lib;C:\Program Files\Microsoft Visual Studio 9.0\VC\lib;C:\DXSDK\Lib;C:\DXSDK\Samples\C++\DirectShow\BaseClasses\Release;C:\DXSDK\Samples\C++\DirectShow\BaseClasses\Debug;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\lib;C:\Program Files\Microsoft Visual Studio 9.0\VC\atlmfc\lib\i386;C:\Program Files\Microsoft SDKs\Windows\v6.0A\\lib;C:\Program Files\Microsoft SDKs\Windows\v6.0A\lib;C:\Program Files\Microsoft Visual Studio 9.0\;C:\Program Files\Microsoft Visual Studio 9.0\lib;..\..\..\ptlib\lib" -x "Debug\ptlibd.def" -x "c:\ptlib-opal\trunk\src\win32\\Private.def" "C:\ptlib-opal\trunk\Debug\opalsd.lib" "c:\ptlib-opal\trunk\src\win32\opald_2008.dtf" "C:\ptlib-opal\trunk\Debug\Debug\OPAL_dll.def"



if errorlevel 1 goto VCReportError

goto VCEnd

:VCReportError

echo Project : error PRJ0019: A tool returned an error code from "Merging exported library symbols"

exit 1

:VCEnd
]
Creating command line """C:\ptlib-opal\trunk\Debug\Debug\BAT0000EF3482876.bat"""
Creating temporary file "C:\ptlib-opal\trunk\Debug\Debug\RSP0000F03482876.rsp" with contents
[
/o "C:\ptlib-opal\trunk\Debug/OPAL_dll.bsc"

"..\..\Debug\Debug\dllmain.sbr"
]
Creating command line "bscmake.exe @"C:\ptlib-opal\trunk\Debug\Debug\RSP0000F03482876.rsp" /nologo"
Output Window Merging exported library symbols
'MergeSym' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
Project : error PRJ0019: A tool returned an error code from "Merging exported library symbols"
Creating browse information file...
Microsoft Browse Information Maintenance Utility Version 9.00.21022
Copyright (C) Microsoft Corporation. All rights reserved.
BSCMAKE: error BK1506 : cannot open file '..\..\Debug\Debug\dllmain.sbr': No such file or directory