报错：无法取到量价信息
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问题
出现以下的报错是什么原因？
[2022-04-17 04:42:13.325398] INFO: moduleinvoker: instruments.v2 开始运行..
[2022-04-17 04:42:13.358454] INFO: moduleinvoker: instruments.v2 运行完成[0.033047s].
[2022-04-17 04:42:13.365955] INFO: moduleinvoker: advanced_auto_labeler.v2 开始运行..
[2022-04-17 04:42:13.842052] INFO: 自动标注(股票): 加载历史数据: 730 行
[2022-04-17 04:42:13.844016] INFO: 自动标注(股票): 开始标注 ..
[2022-04-17 04:42:13.922375] INFO: moduleinvoker: advanced_auto_labeler.v2 运行完成[0.556406s].
[2022-04-17 04:42:13.926634] INFO: moduleinvoker: input_features.v1 开始运行..
[2022-04-17 04:42:13.936747] INFO: moduleinvoker: 命中缓存
[2022-04-17 04:42:13.938537] INFO: moduleinvoker: input_features.v1 运行完成[0.011905s].
[2022-04-17 04:42:13.954938] INFO: moduleinvoker: general_feature_extractor.v7 开始运行..
[2022-04-17 04:42:14.023667] WARNING: bigdatasource: cannot find filed [high] table in field_table_map!
[2022-04-17 04:42:14.025591] WARNING: bigdatasource: cannot find filed [open] table in field_table_map!
[2022-04-17 04:42:14.027016] WARNING: bigdatasource: cannot find filed [low] table in field_table_map!
[2022-04-17 04:42:14.028421] WARNING: bigdatasource: cannot find filed [close] table in field_table_map!
[2022-04-17 04:42:14.029814] WARNING: bigdatasource: cannot find filed [volume] table in field_table_map!
[2022-04-17 04:42:15.614437] WARNING: bigdatasource: unknown fields: ['open', 'low', 'close', 'high', 'volume']
[2022-04-17 04:42:15.636588] INFO: 基础特征抽取: 年份 2017, 特征行数=137
[2022-04-17 04:42:15.641710] WARNING: bigdatasource: cannot find filed [high] table in field_table_map!
[2022-04-17 04:42:15.642765] WARNING: bigdatasource: cannot find filed [open] table in field_table_map!
[2022-04-17 04:42:15.643819] WARNING: bigdatasource: cannot find filed [low] table in field_table_map!
[2022-04-17 04:42:15.644995] WARNING: bigdatasource: cannot find filed [close] table in field_table_map!
[2022-04-17 04:42:15.645936] WARNING: bigdatasource: cannot find filed [volume] table in field_table_map!
[2022-04-17 04:42:17.413446] WARNING: bigdatasource: unknown fields: ['open', 'low', 'close', 'high', 'volume']
[2022-04-17 04:42:17.433007] INFO: 基础特征抽取: 年份 2018, 特征行数=243
[2022-04-17 04:42:17.438092] WARNING: bigdatasource: cannot find filed [high] table in field_table_map!
[2022-04-17 04:42:17.439204] WARNING: bigdatasource: cannot find filed [open] table in field_table_map!
[2022-04-17 04:42:17.440189] WARNING: bigdatasource: cannot find filed [low] table in field_table_map!
[2022-04-17 04:42:17.441216] WARNING: bigdatasource: cannot find filed [close] table in field_table_map!
[2022-04-17 04:42:17.442220] WARNING: bigdatasource: cannot find filed [volume] table in field_table_map!
[2022-04-17 04:42:19.082400] WARNING: bigdatasource: unknown fields: ['open', 'low', 'close', 'high', 'volume']
[2022-04-17 04:42:19.102326] INFO: 基础特征抽取: 年份 2019, 特征行数=244
[2022-04-17 04:42:19.107208] WARNING: bigdatasource: cannot find filed [high] table in field_table_map!
[2022-04-17 04:42:19.108288] WARNING: bigdatasource: cannot find filed [open] table in field_table_map!
[2022-04-17 04:42:19.109428] WARNING: bigdatasource: cannot find filed [low] table in field_table_map!
[2022-04-17 04:42:19.110881] WARNING: bigdatasource: cannot find filed [close] table in field_table_map!
[2022-04-17 04:42:19.112324] WARNING: bigdatasource: cannot find filed [volume] table in field_table_map!
[2022-04-17 04:42:21.217849] WARNING: bigdatasource: unknown fields: ['open', 'low', 'close', 'high', 'volume']
[2022-04-17 04:42:21.238564] INFO: 基础特征抽取: 年份 2020, 特征行数=243
[2022-04-17 04:42:21.243646] WARNING: bigdatasource: cannot find filed [high] table in field_table_map!
[2022-04-17 04:42:21.244931] WARNING: bigdatasource: cannot find filed [open] table in field_table_map!
[2022-04-17 04:42:21.246023] WARNING: bigdatasource: cannot find filed [low] table in field_table_map!
[2022-04-17 04:42:21.247196] WARNING: bigdatasource: cannot find filed [close] table in field_table_map!
[2022-04-17 04:42:21.248266] WARNING: bigdatasource: cannot find filed [volume] table in field_table_map!
解答
high 这样的字段 是不是得写成high_0呢，建议你把策略链接发出来，我们能够复现 就可以帮你看问题了