Error when using MemgraphPropertyGraphStore tutorial

[zg009]

Hello,

I was following the Knowledge Graph Construction Tutorial and was able to get MemGraph and the Lab running on Ubuntu 22.04 with docker-compose. Unfortunately, when I try to run the example code in Step 3, I receive the neo4j.exceptions.ClientError: {code: Memgraph.ClientError.MemgraphError.MemgraphError} {message: Expected a list, a map, a node or an edge to index with '[]', got string.} error. I am able to work around it by setting the flag refresh_schema=False, however it will throw the same error when I run the code in step 5. The error seems to be emitted from this line, but I am unsure if there is something that has changed in the API since this tutorial was released which I can change, or a configuration to change on my end.

[dosubot[bot]]

Hello @zg009! 👋 I'm Dosu, a friendly bot here to help you solve bugs, answer questions, and guide you on your journey to becoming a contributor! I'm here while you wait for a human maintainer. Let's tackle this together! 🛠️

The error you're encountering indicates that the code is trying to index a string instead of the expected data types (list, map, node, or edge). This issue arises from line 653 in the property_graph.py file, which likely involves schema generation or indexing logic.

To address this, ensure that the data being passed to the indexing function is correctly formatted as a list, map, node, or edge. Since setting refresh_schema=False bypasses schema validation, it might temporarily avoid the error but could lead to issues later, as you've experienced in step 5.

Unfortunately, I couldn't find specific information about recent changes in the API or the expected input types for the functions involved. It might be helpful to review the relevant sections of the code around line 653 and the initialization of MemgraphPropertyGraphStore to confirm that the input data aligns with the expected types. Additionally, checking for any recent updates or changes in the repository that might affect the behavior of the MemgraphPropertyGraphStore could provide further insights.

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