CCS/CC3220SF-LAUNCHXL: Getting error in "Wi-Fi Secure File System" in CCS for CC3220SF

Part Number: CC3220SF-LAUNCHXL
Other Parts Discussed in Thread: CC3220SF

Tool/software: Code Composer Studio

I am new to CC3220SF, and i am trying the "Wi-Fi Secure File System" sample program from the following link -

I followed each step, the problem is i am getting following error-

#10010 null: errors encountered during linking; "portable_CC3220SF_LAUNCHXL_tirtos_ccs.out" not built    portable_CC3220SF_LAUNCHXL_tirtos_ccs    C/C++ Problem        

<a href="processors.wiki.ti.com/.../10234"> null: unresolved symbols remain    portable_CC3220SF_LAUNCHXL_tirtos_ccs    C/C++ Problem        

gmake: *** [all] Error 2    portable_CC3220SF_LAUNCHXL_tirtos_ccs    C/C++ Problem        

gmake[1]: *** [portable_CC3220SF_LAUNCHXL_tirtos_ccs.out] Error 1    portable_CC3220SF_LAUNCHXL_tirtos_ccs    C/C++ Problem        

unresolved symbol Board_initGPIO, first referenced in ./secure_fs.obj    portable_CC3220SF_LAUNCHXL_tirtos_ccs    C/C++ Problem        

Kindly help