Using Neo4j as graph db, occurs a bug

[Gaaaaam]

Hi,
Such an amazing work! There is a little bug (pic1) occurred when I was trying to query the local Neo4j. The naming method of cache dir seems to be a wrong format to Cypher syntax. After I altered the ":" into "-" (pic2), it ran successfully.
-pic1-

-pic2-

I got another question: I tried to query the local Neo4j (I have already put some nodes/relations in it, but in Cypher way), I thought it would return something, but the result shows in pic3, seems nothing. I'm confused that should I insert something first into the local Neo4j by using 'insert' function in GraphRAG class?? Then use the 'query' function?
-pic3-