LAUNCHXL-F280039C: How to change the reference GCC compiler path for 'clb_simulation'

Tool/software:

In my CCS project, I already changed the value of 'Path Variables' named 'CLB_SIM_COMPILER' to another different path: 'D:\ProgramFiles\TDM-GCC-64\bin', which is the actual install directory of my GCC, but why my building output 'clb_simulation.bat' file still reference to 'C:/TDM-GCC-64/bin/g++'? how to solve this problem