help please regarding pjsip project..

[sureshkansujiya@xxxxxxxxx (Suresh)]

1>c:\users\gagan.infotech\desktop\micro\sipdlg.h(6) : fatal error C1083: 
Cannot open include file: 'pjsua-lib/pjsua.h': No such file or directory
1>settings.cpp
1>c:\users\gagan.infotech\desktop\sip\global.h(5) : fatal error C1083: Cannot 
open include file: 'pjsua-lib/pjsua.h': No such file or directory



please answer me waiting for your valuable response...