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TM4C129ENCPDT: Linker Error in CCS environment

Part Number: TM4C129ENCPDT

Hi,

I am getting below linker error and the controller is TM4C129ENCPDT. I am trying an application program for using USB feature in the controller.
========Error message is below =======
 undefined first referenced                 
  symbol       in file                      
 --------- ----------------                 
 PBMQ_enq  ./modules/usbCdc/llserial.obj    
 PBM_alloc ./modules/usbCdc/usbserialppp.obj
 SemPost   ./modules/usbCdc/usbserialppp.obj
============END==========
 
I have included the below libs and please let us know any other library needs to be added.
"libc.a"
"C:\ext_libs\wolfssl\tirtos\packages\ti\net\wolfssl\lib\wolfssl_tm4c_hw.aem4f"
"${COM_TI_RTSC_TIRTOSTIVAC_INSTALL_DIR}/products/TivaWare_C_Series-2.1.1.71b/grlib/ccs/Debug/grlib.lib"
"${COM_TI_RTSC_TIRTOSTIVAC_INSTALL_DIR}/products/TivaWare_C_Series-2.1.1.71b/usblib/ccs/Debug/usblib.lib"
"${COM_TI_RTSC_TIRTOSTIVAC_INSTALL_DIR}/products/TivaWare_C_Series-2.1.1.71b/driverlib/ccs/Debug/driverlib.lib"
====
Let me please know any further detail needed.
If any additional liobrary to be included, you may point to me.
A solution, tip or suggestion is appreciated to resolve the error and continue to build my application.
Thank You
Ram