ImportError: cannot import name AugSchemeMPL about pool-reference HOT 2 CLOSED

pip install -e ../chia-blockchain
OR pip install chia-blockchain

from pool-reference.

Hello. I have the following error, version blspy==2.0.2

(venv) root@HM-a3iGE3:~/pool-reference# sudo CHIA_ROOT="/root/.chia/testnet9" ./venv/bin/python -m pool
Traceback (most recent call last):
File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
exec(code, run_globals)
File "/root/pool-reference/pool/main.py", line 1, in
from pool.pool_server import main
File "/root/pool-reference/pool/pool_server.py", line 34, in
from .record import FarmerRecord
File "/root/pool-reference/pool/record.py", line 13, in
class FarmerRecord(Streamable):
File "/root/pool-reference/venv/lib/python3.10/site-packages/chia/util/streamable.py", line 538, in streamable
cls._streamable_fields = create_fields(cls)
File "/root/pool-reference/venv/lib/python3.10/site-packages/chia/util/streamable.py", line 122, in create_fields
parse_function=function_to_parse_one_item(hint),
File "/root/pool-reference/venv/lib/python3.10/site-packages/chia/util/streamable.py", line 431, in function_to_parse_one_item
raise UnsupportedType(f"Type {f_type} does not have parse")
chia.util.streamable.UnsupportedType: Type <class 'blspy.G1Element'> does not have parse
(venv) root@HM-a3iGE3:~/pool-reference#

Can you please tell me the solution?

from pool-reference.