Hi,* I am using visual studio 2005. I select "samples" as startup project and build. It fail. Buildlog is below. But pjnath project can be built sucessfully if I select "pjnath" as startup. pjsip-0.8.0 is ok. regards, Daniel *Build Log Build started: Project: samples, Configuration: Release|Win32 Command Lines Creating temporary file "C:\DOCUME~1\Gang\LOCALS~1\Temp\BAT00002F110647672.bat" with contents [ @echo off nmake /NOLOGO /S /f Samples-vc.mak BUILD_MODE=release VC_VER=8 if errorlevel 1 goto VCReportError goto VCEnd :VCReportError echo Project : error PRJ0019: A tool returned an error code from "Performing Makefile project actions" exit 1 :VCEnd ] Creating command line "C:\DOCUME~1\Daniel\LOCALS~1\Temp\BAT00002F110647672.bat" Output Window Performing Makefile project actions NMAKE : fatal error U1073: don't know how to make '..\..\pjnath\lib\pjnath-i386-win32-vc8-release.lib' Stop. Project : error PRJ0019: A tool returned an error code from "Performing Makefile project actions" Results Build log was saved at "file://d:\pjsip\pjproject-0.9.0\pjsip-apps\build\output\samples-i386-win32-vc8-release\BuildLog.htm" samples - 2 error(s), 0 warning(s) -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080702/19c97d71/attachment.html