CCS/AWR1642: question about startFreqConst configuration error

Tool/software: Code Composer Studio

hi 

i had configurated the parameter of profileCfg.startFreqConst = (uint32_t)(76.3 * (1u  << 26) / 3.6);

but the error shows as below:

Error : MMWDemoMss mmwave Configuration failed [error code -203685702]

please help me to check what's up with it , and how to deal with it 

thanks

br

havi