Neosemantics "Detecting n10s plugin..." Never Completes

Neo4j Graph Platform
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1

Thanks to @dana_canzano for solving my problem installing the Neosemantics plugin.

However, even though the n10s procedurals show up, and I'm getting a ping from the RDF server, I'm not able to get the Neosematics Graph App to launch.

When I try to launch the Neosemantics Graph App, I see this message:
Neosemantics has dependencies
My First Graph DBMS is missing the plugin dependencies required by Neosemantics.
Missing dependencies

  • Neosemantics (n10s)

When I press the Install dependencies button, I get the message Detecting n10s plugin...
with a spinning wheel of death that never returns.

Screenshot 2024-07-07 at 10.45.08 PM

What am I missing?

Setup:
MacOS Sonoma 14.1
Neo4j Desktop Version 1.6.0 (1.6.0.121)
Neosemantics JAR file: neosemantics-5.20.0.jar

Thanks

2

Hi @jeroen.lapre1 Did you ever resolve this issue? I'm getting the exact same issue. The ping returns; 'show procedures' show the n10s. I've checked that the .jar file is in the correct location

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But still getting the spinning wheel like in your message after I select the Install dependencies button. Also the plugins tab of the dbms for Neosemantics states 'No compatible version found'.

I'll keep trawling for clues....

3

it looks like n10s is not updated yet - I am trying to upgrade my docker and still waiting for that upgrade to happen.

4

Many thanks for your reply

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5

So I have neosemantics working now. Let me know if you want the very simple solution.

6

What is the solution?

7

Don't bother tryin to launch it.

Obs make sure the .jar is in the active DBMS folder in the relate-data folder.
Add
'dbms.unmanaged_extension_classes=n10s.endpoint=/rdf' to the DBMS configuration file

Check the n10s are there, 'SHOW PROCEDURES'

Check the http endpoints are mounted - expect response {"ping":"here!"}
':GET http://localhost:7474/rdf/ping'

Don't bother launching it here:

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Follow this example from here: Getting Started with Neosemantics - Neo4j Labs

i.e set the constraint and change the graphconfig params if you want.

Then you can fetch and import or preview your serialization file.

I'm using a local db on Windows Desktop Enterprise version 5.25.1.

I have a .ttl file stored on my D: drive and used the call:
'CALL n10s.rdf.preview.fetch("file:///D:\test.ttl","Turtle");' and there it was.

You can import/preview it using a url or an inline call.

1 Like