AttributeError: module 'zstandard' has no attribute '__version__'

Bắt đầu với urllib3/connectionpool.py và response.py, nơi traceback đọc zstandard.version, sau đó kiểm tra cách module zstandard đã cài đặt được cung cấp sau khi cập nhật conda. Tái hiện lỗi thông qua entry point của conda và xác minh rằng việc tạo một môi trường hoặc cài đặt một gói hoàn tất mà không có traceback.

Hi, I did the conda update this morning, with the command conda update conda, but at the end I got this message:

Traceback (most recent call last):
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/exceptions.py", line 1124, in call
return func(*args, **kwargs)
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/cli/main.py", line 57, in main_subshell
p = generate_parser()
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/cli/conda_argparse.py", line 40, in generate_parser
p = ArgumentParser(
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/cli/conda_argparse.py", line 117, in init
self._subcommands = context.plugin_manager.get_hook_results("subcommands")
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/base/context.py", line 422, in plugin_manager
from ..plugins.manager import get_plugin_manager
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/plugins/init.py", line 3, in
from .hookspec import hookimpl # noqa: F401
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/plugins/hookspec.py", line 10, in
from .types import CondaSolver, CondaSubcommand, CondaVirtualPackage
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/plugins/types.py", line 6, in
from ..core.solve import Solver
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/core/solve.py", line 15, in
from .index import get_reduced_index, _supplement_index_with_system
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/core/index.py", line 10, in
from .package_cache_data import PackageCacheData
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/core/package_cache_data.py", line 22, in
from .path_actions import CacheUrlAction, ExtractPackageAction
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/core/path_actions.py", line 28, in
from ..gateways.connection.download import download
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/gateways/connection/init.py", line 6, in
from requests import ConnectionError, HTTPError, Session
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/requests/init.py", line 43, in
import urllib3
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/init.py", line 18, in
from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool, connection_from_url
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/connectionpool.py", line 15, in
from ._request_methods import RequestMethods
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/_request_methods.py", line 10, in
from .response import BaseHTTPResponse
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/response.py", line 38, in
map(int, re.search(r"^([0-9]+).([0-9]+)", zstd.version).groups()) # type: ignore[union-attr]
AttributeError: module 'zstandard' has no attribute 'version'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/bioinfo/mambaforge-pypy3/bin/conda", line 13, in
sys.exit(main())
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/cli/main.py", line 112, in main
return conda_exception_handler(main, *args, **kwargs)
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/exceptions.py", line 1424, in conda_exception_handler
return_value = exception_handler(func, *args, **kwargs)
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/exceptions.py", line 1127, in call
return self.handle_exception(exc_val, exc_tb)
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/exceptions.py", line 1167, in handle_exception
return self.handle_unexpected_exception(exc_val, exc_tb)
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/exceptions.py", line 1178, in handle_unexpected_exception
self.print_unexpected_error_report(error_report)
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/exceptions.py", line 1240, in print_unexpected_error_report
from .cli.main_info import get_env_vars_str, get_main_info_str
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/cli/main_info.py", line 17, in
from ..core.index import _supplement_index_with_system
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/core/index.py", line 10, in
from .package_cache_data import PackageCacheData
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/core/package_cache_data.py", line 22, in
from .path_actions import CacheUrlAction, ExtractPackageAction
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/core/path_actions.py", line 28, in
from ..gateways.connection.download import download
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/conda/gateways/connection/init.py", line 6, in
from requests import ConnectionError, HTTPError, Session
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/requests/init.py", line 43, in
import urllib3
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/init.py", line 18, in
from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool, connection_from_url
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/connectionpool.py", line 15, in
from ._request_methods import RequestMethods
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/_request_methods.py", line 10, in
from .response import BaseHTTPResponse
File "/home/bioinfo/mambaforge-pypy3/lib/pypy3.9/site-packages/urllib3/response.py", line 38, in
map(int, re.search(r"^([0-9]+).([0-9]+)", zstd.version).groups()) # type: ignore[union-attr]
AttributeError: module 'zstandard' has no attribute 'version'

now if I try to create a virtual environment or install something with conda I get the same message

My OS is UBUNTU 20.04 LTS

How can fix the problem?

Thanks