also:

also:
index = PropertyGraphIndex.from_existing(
property_graph_store=graph_store,
vector_store=vector_store,
embed_kg_nodes=True,
)
File c:\Users\.virtualenvs\cypher-5_nblxkf\Lib\site-packages\llama_index\core\indices\property_graph\base.py:129, in PropertyGraphIndex.init(self, nodes, llm, kg_extractors, property_graph_store, vector_store, use_async, embed_model, embed_kg_nodes, callback_manager, transformations, storage_context, show_progress, **kwargs)
...
412 except ValueError:
--> 413 raise ValueError("Not valid 'uuid' or 'uuid' can not be extracted from value") from None
414 return _uuid