Answer

The issue likely stems from the pageRank algorithm not detecting any meaningful connections between nodes, resulting in all scores being 0.0, which prevents any node from being marked as a landmark. Ensure your graph has edges connecting nodes (e.g., Problem → RootCause → Solution) to enable scoring. Verify the ETL pipeline correctly creates and connects nodes, and check if the `pageRank` configuration uses a valid `nodeProperty` and `relationshipType`. Example: `gds.pageRank.stream('graph', { nodeProperty: 'score', relationshipType: 'RELATED_TO' })`.

662d6b23-0ee7-4173-ba79-2633e99a9e2c

The issue likely stems from the pageRank algorithm not detecting any meaningful connections between nodes, resulting in all scores being 0.0, which prevents any node from being marked as a landmark. Ensure your graph has edges connecting nodes (e.g., Problem → RootCause → Solution) to enable scoring. Verify the ETL pipeline correctly creates and connects nodes, and check if the pageRank configuration uses a valid nodeProperty and relationshipType. Example: gds.pageRank.stream('graph', { nodeProperty: 'score', relationshipType: 'RELATED_TO' }).