Traceback (most recent call last):
File "c:\vnstudio\lib\site-packages\vnstation\cli.py", line 90, in run_trader
module = importlib.import_module(d["module"])
File "c:\vnstudio\lib\importlib__init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "c:\vnstudio\lib\site-packages\vnpy\app\option_master\init__.py", line 3, in <module>
from .engine import OptionEngine, APP_NAME
File "c:\vnstudio\lib\site-packages\vnpy\app\option_master\engine.py", line 24, in <module>
from .base import (
File "c:\vnstudio\lib\site-packages\vnpy\app\option_master\base.py", line 9, in <module>
from .time import calculate_days_to_expiry, ANNUAL_DAYS
File "c:\vnstudio\lib\site-packages\vnpy\app\option_master\time.py", line 2, in <module>
import trading_calendars
ModuleNotFoundError: No module named 'trading_calendars'
更新到2.1.7版本后,启动时显示上面的报错。请教大佬如何解决?