Running PC-Lint... PC-lint for C/C++ (NT) Ver. 8.00o, Copyright Gimpel Software 1985-2004 C:\StellarisWare2\boards\rdk-s2e\ser2enet\config.c(25,9): Error 322: Unable to open include file 'string.h'
just a quick suggestion
go to C:\Keil\ARM\BIN assuming you havent change the installation location and use the CO_RV.LNT file from there rather than use the C0RV.LNT from the gimpel or Keil website.
Doing this removed more of the warning for me generated by the #include <*.h> files than trying to set up paths etc