从2020-07-23 23：50左右打开VN Trader Pro 就报错，进不去了，具体如下：
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\portfolio_strategy\init.py", line 11, in <module>
from .backtesting import BacktestingEngine
File "c:\vnstudio\lib\site-packages\vnpy\app\portfolio_strategy\backtesting.py", line 8, in <module>
import matplotlib.pyplot as plt
File "c:\vnstudio\lib\site-packages\matplotlib\init.py", line 207, in <module>
_check_versions()
File "c:\vnstudio\lib\site-packages\matplotlib\init.py", line 192, in _check_versions
from . import ft2font
ImportError: cannot import name 'ft2font' from 'matplotlib' (c:\vnstudio\lib\site-packages\matplotlib\init__.py)
有大神能帮忙看看嘛？
