群主和各位大神，你们好：

1. 我一直用的是2.06版本，突然下午不能正常打开cta模块了，于是直接卸载2.06，下载安装2.07（win10）
2. 打开2.07 cta模块依然无法正常打开且报错，报错原因一模一样（如下所示），请教下，谢谢
   Traceback (most recent call last):
   File "D:\vnstudio\lib\site-packages\vnpy\trader\ui\mainwindow.py", line 265, in open_widget
   widget = widget_class(self.main_engine, self.event_engine)
   File "D:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\ui\widget.py", line 37, in init
   self.cta_engine.init_engine()
   File "D:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\engine.py", line 109, in init_engine
   self.load_strategy_data()
   File "D:\vnstudio\lib\site-packages\vnpy\app\cta_strategy\engine.py", line 790, in load_strategy_data
   self.strategy_data = load_json(self.data_filename)
   File "D:\vnstudio\lib\site-packages\vnpy\trader\utility.py", line 92, in load_json
   data = json.load(f)
   File "D:\vnstudio\lib\json__init.py", line 296, in load
   parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
   File "D:\vnstudio\lib\json\init__.py", line 348, in loads
   return _default_decoder.decode(s)
   File "D:\vnstudio\lib\json\decoder.py", line 337, in decode
   obj, end = self.raw_decode(s, idx=_w(s, 0).end())
   File "D:\vnstudio\lib\json\decoder.py", line 355, in raw_decode
   raise JSONDecodeError("Expecting value", s, err.value) from None
   json.decoder.JSONDecodeError: Expecting value: line 208 column 22 (char 4432)

删了C:\users\administrator.vntrader\cta_strategy_setting.json文件，然后重启。

不是特别熟悉请不要手动修改json文件

已解决，群主NB