IWR1642: Excute "VitalSignsRadar_Demo.exe" can't auto detect com port.

Part Number:IWR1642

Hi,

      I'm trying to run the lab0001-driver-vital-signs and load the original pre-built bin file successed.

But when I excute the GUI VitalSignsRadar_Demo.exe , it show  error as below picture.

The wafer revision is IWR1642 ES1.0 , I had tried two different toolbox revision  "mmwave_automotive_toolbox_1_2_0" and "mmwave_automotive_toolbox_2_2_0"

and both two have the same isssue.I think the hardware is good ,because I can run the people count lab. Could you help me to figure out what is wrong

Thanks