yes, I downloaded mbedtls-3.6 just now, and can found mbedtls_chachapoly_context inside it then.

FYI, I downloaded mbedtls-3.6 and found the definition of mbedtls_chachapoly_contex in chachapoly.h, the file chachapoly.h not in the mebedtls package I'd got before.

Thanks Kevin, so far I think I have fixed this problem, I download mbedtls 3.6 from internet and now the ADK can be compiled. It's perhaps not really a problem, it's normal that ADK does not include third party library which are opensource shared.