Hi everyone, I'm trying to get Knowledge

At a glance

A community member is trying to use the Knowledge Graph Query Engine but is encountering an error message: "AttributeError: 'NoneType' object has no attribute 'kwargs'". They have confirmed that the knowledge graph is up and running and can run direct queries against it successfully. The community members discuss the issue, noting that the problem is related to changes in the llama_index library since version 0.10.x, and that the prompt template is now set to None. One community member suggests checking a specific notebook that they used to make it work.

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KKolonelMeow

Hi everyone, I'm trying to get Knowledge Graph Query Engine work on my end and I'm getting some error message that I don't understand.
This happens when I call query_eninge.qyery("my query") The error message that I get is this:
AttributeError: 'NoneType' object has no attribute 'kwargs'
I can confirm that the knowledge graph is up and running and it has data inserted in it already and can run direct queries against it successfully.
Wondering if any of you knows what's the problem here. Complete error message in the thread.
Thanks!

9 comments

KKolonelMeow

Looks like the error message is to long to add in here

KKolonelMeow

File ~/Code/testllamaindex/venv/lib/python3.9/site-packages/llama_index/core/llms/llm.py:215, in LLM._log_template_data(self, prompt, prompt_args) 210 def _log_template_data( 211 self, prompt: BasePromptTemplate, prompt_args: Any
212 ) -> None:
213 template_vars = {
214 k: v
--> 215 for k, v in ChainMap(prompt.kwargs, prompt_args).items()
216 if k in prompt.template_vars
217 }
218 with self.callback_manager.event(
219 CBEventType.TEMPLATING,
220 payload={
(...)
225 },
226 ):
227 pass

AttributeError: 'NoneType' object has no attribute 'kwargs'

KKolonelMeow

This is the last block of the error message ^^^

bbmax

@KolonelMeow can you send more code surrounding your query

LLogan M

This is actually broken since v0.10.x -- been on my todo to fix, but KGs are lower priority lol

LLogan M

There were specific cypher prompts for nebula vs neo4j that got removed

LLogan M

so now the prompt template is none

KKolonelMeow

gotcha - what are your best practices for using a knowledge graph with llamaindex?

OOceanLi

@KolonelMeow I actually made it work, check here https://github.com/lion-agi/lionagi/blob/main/notebooks/RAG%20use%20cases/AutoResearch_Followup.ipynb

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Hi everyone, I'm trying to get Knowledge