LAUNCHXL-CC2640R2: AoA build issue in latest CC2640R2 SDK 2.40.00.32

Part Number:LAUNCHXL-CC2640R2

According to , it mentions

• For RTLS Master and RTLS Slave projects, the configuration -DRTLS_LOCATIONING_AOA in build_config.opt file that is located in the project directory, controls the build.
• To build AoA, keep the option uncommented: -DRTLS_LOCATIONING_AOA

However, if we only uncommented "-DRTLS_LOCATIONING_AOA" in build_config.opt file, it will shows the following error and I need to put RTLS_LOCATIONING_AOA in predefined symbols to make it work. Can you confirm this is correct?

Also, I see the AOA results are erratic after I setup and run AOA. I only put rtls_slave 1 meter away from rtls_passive without moving and see the following results.

I also attach the event log for your reference.

(Please visit the site to view this file)

What am I doing wrong?

By the way, do you have detail documents to explain what's the working theory between rtls_master, rtls_passive, and rtls_slave?