Rockpi 4 c plus | mraa | unknown platform

Hi,

I’m playing with rockpi 4c plus and would like to use libmraa to receive pps signal from a robotic platform but somehow the mraa not able to detect my rockpi 4c plus platform. I always get the below error.

mraa-gpio list
No Pins

mraa-gpio version                                                          
Version v2.1.0 on Unknown platform 

Does anyone have any idea about this error?