模拟交易报错

运行了几天突然报错,日记提示

[2022-12-22 18:01:42.368814] ERROR moduleinvoker: module name: hyper_rolling_train, module version: v1, trackeback: pyarrow.lib.ArrowException: Unknown error: Unknow error in Bigma

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tradex Name or service not known,回测正常,提交模拟就报错AttributeError:'NoneType' object has no attribute 'read' 是什麽原因?
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