G:\vnstudio\python.exe G:/vnstudio/Lib/site-packages/vnpy/trader/ui/mainwindow.py
Traceback (most recent call last):
File "G:/vnstudio/Lib/site-packages/vnpy/trader/ui/mainwindow.py", line 13, in <module>
from .widget import (
ModuleNotFoundError: No module named 'main.widget'; 'main' is not a package

在mainwindow.py 右键-运行，报以上错误