The community member is trying to index an existing Neo4J knowledge graph (KG) but is having trouble, as they can only get Neo4J to work if they create the nodes from LlamaIndex, not by connecting directly to an existing KG. Another community member suggests that you can't index an existing KG, but you can still query it effectively using the LlamaIndex documentation. The original poster tried this approach but it didn't work, and they wonder if it's because they're using a property graph while LlamaIndex uses triplets. A third community member agrees that this might be the issue, and mentions they've been meaning to refactor their graph stuff from RDF to LPG, but it's a lower priority at the moment.
How do I index an existing Neo4J KG? I can only get a Neo4J to work if I create the nodes from LlamaIndex but not if I just connect directly to an existing KG.