GitHub user dosubot[bot] edited a comment on the discussion: 关于电网拓扑数据导入
<!-- Answer -->
你的配置还有一个关键点没改对，导致还是报错：
你的 struct.json 里 edges 的 field_mapping 现在是：
```json
"field_mapping": { "from": "id", "to": "id" }
```
这会把 edge_connected_to.csv 的 id 列当作边属性导入，但 schema.groovy 的 edgeLabel 没有声明 id
属性，所以报 “Invalid property 'id' for edge label” 错误。
**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。
你只需要把 struct.json 里所有 edges 的 field_mapping 全部改成上面这样（只写 from/to），不要写
id，其他配置不用动。edge_connected_to.csv 的 id 列可以保留，但 loader 不会导入它为边属性。
这样配置后，边就能正常导入且无报错，所有关系都能导入。[详细机制见官方FAQ](https://github.com/apache/incubator-hugegraph-doc/blob/master/content/en/docs/guides/faq.md)
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GitHub link:
https://github.com/apache/hugegraph/discussions/2917#discussioncomment-15206167
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