我在境外不开ShadowSocks也显示错误
如果把proxy的两项删空，则显示
Traceback (most recent call last):
File "C:\vnstudio\lib\site-packages\vnpy\trader\ui\widget.py", line 558, in connect
field_value = field_type(widget.text())
ValueError: invalid literal for int() with base 10: ''