Traceback (most recent call last):
File "D:\vn\vnpy-3.9.4\vnpy\trader\ui\mainwindow.py", line 277, in open_widget
widget = widget_class(self.main_engine, self.event_engine)
File "D:\Programs\miniconda3\envs\py310_vnpy\lib\site-packages\vnpy_ctastrategy\ui\widget.py", line 40, in init
self.cta_engine.init_engine()
File "D:\Programs\miniconda3\envs\py310_vnpy\lib\site-packages\vnpy_ctastrategy\engine.py", line 107, in init_engine
self.register_event()
File "D:\Programs\miniconda3\envs\py310_vnpy\lib\site-packages\vnpy_ctastrategy\engine.py", line 121, in register_event
log_engine.register_log(EVENT_CTA_LOG)
AttributeError: 'LogEngine' object has no attribute 'register_log'

pip install vnpy -U先升级到4.0.0之后再试试看吧

xiaohe wrote:

pip install vnpy -U先升级到4.0.0之后再试试看吧
可行，但是因担心稳定问题，所以才装次新版本。应该是这个功能版本兼容问题

你要用vnpy 3.9.4那vnpy_ctastrategy也要降级