Traceback (most recent call last):
File "D:\veighna_studio\lib\site-packages\vnpy_datamanager\ui\widget.py", line 384, in update_data
self.engine.download_bar_data(
File "D:\veighna_studio\lib\site-packages\vnpy_datamanager\engine.py", line 212, in download_bar_data
data: List[BarData] = self.datafeed.query_bar_history(req, output)
File "D:\veighna_studio\lib\site-packages\vnpy_wind\wind_datafeed.py", line 55, in query_bar_history
return self.query_intraday_bar_history(req, output)
File "D:\veighna_studio\lib\site-packages\vnpy_wind\wind_datafeed.py", line 97, in query_intraday_bar_history
dt: datetime = tp.Index.to_pydatetime()
AttributeError: 'str' object has no attribute 'to_pydatetime'
求看，感谢
