Undefined symbol error due to .lib file in CCS...

I was trying to run an example ledprd using CCS Ver3.3...This project is given by TI as a part of tutorial....but, when I modified the program as per instructions given in tutorial, I found that there were errors related to include files....I resolved the errors by inserting appropriate build options...but now, it is giving these errors related to dsk6416bsl.lib file...The build log is as below...I searched the forum, but I could not get any answer from that....How to solve this error???

----------------------------  ledprd.pjt - Debug  -----------------------------
[ledprd.tcf] "D:\CCStudio_v3.3PLA\bios_5_33_05\xdctools\tconf" -b -Dconfig.importPath="D:/CCStudio_v3.3PLA/bios_5_33_05/packages"  ledprd.tcf

[ledprd.c] "D:\CCStudio_v3.3PLA\C6000\cgtools\bin\cl6x" -g -q -fr"./Debug" -i"." -i"D:/CCStudio_v3.3PLA/c6000/dsk6416/include" -i"D:/CCStudio_V3.1/c6000/dsk6416/include" -d"_DEBUG" -d"CHIP_6416" -ml3 -mv6400 -@"Debug.lkf" "ledprd.c"

[ledprdcfg.s62] "D:\CCStudio_v3.3PLA\C6000\cgtools\bin\cl6x" -g -q -fr"./Debug" -i"." -i"D:/CCStudio_v3.3PLA/c6000/dsk6416/include" -i"D:/CCStudio_V3.1/c6000/dsk6416/include" -d"_DEBUG" -d"CHIP_6416" -ml3 -mv6400 -@"Debug.lkf" "ledprdcfg.s62"

[ledprdcfg_c.c] "D:\CCStudio_v3.3PLA\C6000\cgtools\bin\cl6x" -g -q -fr"./Debug" -i"." -i"D:/CCStudio_v3.3PLA/c6000/dsk6416/include" -i"D:/CCStudio_V3.1/c6000/dsk6416/include" -d"_DEBUG" -d"CHIP_6416" -ml3 -mv6400 -@"Debug.lkf" "ledprdcfg_c.c"

[Linking...] "D:\CCStudio_v3.3PLA\C6000\cgtools\bin\cl6x" -@"Debug.lkf"
<Linking>

 undefined     first referenced                                              
  symbol           in file                                                   
 ---------     ----------------                                              
 _EMIFA_config D:/CCStudio_V3.1/c6000/dsk6416/lib/dsk6416bsl.lib<dsk6416.obj>
 _EMIFB_config D:/CCStudio_V3.1/c6000/dsk6416/lib/dsk6416bsl.lib<dsk6416.obj>

error: unresolved symbols remain
error: errors encountered during linking; "./Debug/ledprd.out" not built

>> Compilation failure

Build Complete,
  1 Errors, 0 Warnings, 0 Remarks.