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(py37_vnpy) C:\Users\zhang\vnpy-master\vnpy-master>python run.py
Traceback (most recent call last):
File "C:\Users\zhang\vnpy-master\vnpy-master\vnpy\trader\ui\mainwindow.py", line 282, in open_widget
widget = widget_class(self.main_engine, self.event_engine)
File "d:\ProgramData\Anaconda3\envs\py37_vnpy\lib\site-packages\vnpy_ctastrategy\ui\widget.py", line 38, in init
self.cta_engine.init_engine()
File "d:\ProgramData\Anaconda3\envs\py37_vnpy\lib\site-packages\vnpy_ctastrategy\engine.py", line 115, in init_engine
self.load_strategy_data()
File "d:\ProgramData\Anaconda3\envs\py37_vnpy\lib\site-packages\vnpy_ctastrategy\engine.py", line 834, in load_strategy_data
self.strategy_data = load_json(self.data_filename)
File "C:\Users\zhang\vnpy-master\vnpy-master\vnpy\trader\utility.py", line 99, in load_json
data = json.load(f)
File "d:\ProgramData\Anaconda3\envs\py37_vnpy\lib\json__init.py", line 296, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "d:\ProgramData\Anaconda3\envs\py37_vnpy\lib\json\
init__.py", line 348, in loads
return _default_decoder.decode(s)
File "d:\ProgramData\Anaconda3\envs\py37_vnpy\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "d:\ProgramData\Anaconda3\envs\py37_vnpy\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 4 column 19 (char 54)

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请删除C:\users\administrator.vntrader里对应的json文件,再重启。你这个应该是删除cta_strategy_data.json。如果还报同样的错,建议检查一下策略参数的类型。检查一下策略里是否有把str\bool\int\float以外的变量名,写到了parameters列表中,json文件保存不了这四种基础数据以外的类型,就会出错

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