升级2.0.7之后运行examples里的run出现,之前使用2.0.6在mac下是能跑起来的,
Traceback (most recent call last):
File "/Users/anaconda3/envs/VNPY/lib/python3.7/site-packages/vnpy/project/run.py", line 4, in <module>
from vnpy.trader.engine import MainEngine
File "/Users/anaconda3/envs/VNPY/lib/python3.7/site-packages/vnpy/trader/engine.py", line 15, in <module>
from .app import BaseApp
ImportError: cannot import name 'BaseApp' from 'vnpy.trader.app'

这里因该是升级失败了，vnpy库没有完全安装到site-packages里

vnpy2.0.7报错：ModuleNotFoundError: No module named 'vnpy.trader.engine'，大家知道是什么原因吗