GitHub user dosubot[bot] added a comment to the discussion: 关于电网拓扑数据导入
<!-- Answer --> 你的配置问题已经很明确：**边数据的 id 字段被错误地当作边属性导入了，但 schema.groovy 的边标签没有声明 id 属性**，所以 HugeGraphLoader 报 “Invalid property 'id' for edge label” 错误[参考](https://github.com/apache/incubator-hugegraph-doc/blob/master/content/en/docs/guides/faq.md)。 **怎么修正：** 1. **struct.json 的 field_mapping 必须只写 from/to，不要写 id** ```json "field_mapping": { "from": "from", "to": "to" } ``` 这样 loader 只会用 from/to 字段去查找顶点，不会把 id 字段当作边属性导入。 2. **schema.groovy 的 edgeLabel .properties() 只写实际需要的属性** 例如： ```groovy schema.edgeLabel("LineSegment2LineSegment") .sourceLabel("LineSegment") .targetLabel("LineSegment") .properties("source_label", "target_label") .ifNotExist().create(); ``` 不要加 "id"。 3. **edge_connected_to.csv 的 id 列可以保留，但 loader 不会导入它为边属性**，只要 field_mapping 不写 id 就不会报错。 4. **value_mapping 必须是平铺结构**，你现在的写法没问题。 **你现在的 field_mapping 写成了：** ```json "field_mapping": { "from": "id", "to": "id" } ``` 这会把 CSV 的 id 列当作边属性导入，导致报错。**正确写法应该是：** ```json "field_mapping": { "from": "from", "to": "to" } ``` 这样 loader 只会用 from/to 字段去查找顶点，不会把 id 字段当作边属性导入。 **总结：** - struct.json 的 edges 里 field_mapping 只写 from/to，不要写 id。 - schema.groovy 的 edgeLabel .properties() 只写 "source_label", "target_label"，不要加 "id"。 - edge_connected_to.csv 的 id 列可以保留，但 loader 不会导入它为边属性。 - value_mapping 是平铺结构即可。 这样配置后，边就能正常导入且无报错，所有关系都能导入。[官方FAQ说明](https://github.com/apache/incubator-hugegraph-doc/blob/master/content/en/docs/guides/faq.md) [源码机制说明](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/schema/EdgeLabel.java) <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? 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