Homekit pairing failed

[yuhengqiu]

Hi guys, when I tried to pair to HomeKit, I got "Coundn't add Accessory" error and failed.
Actually it was stucked at:

POST /pair-add Not implemented!
10.0.0.71 -- [01/Aug/2020 17:27:31] code 404, message Not Found

If I implements pair-add in hap.py, then it added pair, but got stucked at:

Exception happened during processing of request from ('10.0.0.71', 51700)
Traceback (most recent call last):
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/socketserver.py", line 316, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/socketserver.py", line 347, in process_request
    self.finish_request(request, client_address)
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/socketserver.py", line 360, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/socketserver.py", line 720, in __init__
    self.handle()
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/http/server.py", line 428, in handle
    self.handle_one_request()
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/http/server.py", line 394, in handle_one_request
    self.raw_requestline = self.rfile.readline(65537)
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/socket.py", line 589, in readinto
    return self._sock.recv_into(b)
  File "/Volumes/Workspace/App/airplay2-receiver/ap2/pairing/hap.py", line 348, in recv_into
    data = self.recv(nbytes, flags)
  File "/Volumes/Workspace/App/airplay2-receiver/ap2/pairing/hap.py", line 366, in recv
    block_length_bytes = self.socket.recv(self.LENGTH_LENGTH)
  File "/Volumes/Workspace/App/airplay2-receiver/ap2/pairing/hap.py", line 357, in recv
    assert not flags and buflen > self.LENGTH_LENGTH
AssertionError

Anyone has succeed in pairing to HomeKit? Did I miss something? Cheers