【代码报错】NaTType does not support strftime

  • 默认可视化线性模板里,sql就加了几个条件,其他没改,就回测不了,提示日期为空或属性不存在,能帮忙看下吗?
    策略:https://bigquant.com/codeshare/6316cf34-e449-4b15-87b1-1754a9b5a2e5

    回测时出现错误
    ValueError: NaTType does not support strftime
    添加“缺失数据模块”后,出现这个错误
    AttributeError: 'DataSource' object has no attribute 'iter_df'
    怎么解决?