Not able to import OWL file

  • neo4j desktop version 4.0.1

I tried to the following procedure:

CALL semantics.importRDF("","Turtle")

I got the following error:


There is no procedure with the name semantics.importRDF registered for this database instance. Please ensure you've spelled the procedure name correctly and that the procedure is properly deployed.

I also made sure that ```*
added the neosemantics jar to the plugins directory. (712.1 KB)

what else am I missing?.

no errors in log... please see the attached logs zip (rename/remove .txt file extension).


It looks like you are using 4.0 version.

Please add this to config

  • dbms.unmanaged_extension_classes=n10s.endpoint=/rdf

Also read this 4.0 related doc

thank you for your answer.

when i try

CREATE CONSTRAINT n10s_unique_uri ON (r:Resource) ASSERT r.uri IS UNIQUE -->

There already exists an index :Resource(uri). A constraint cannot be created until the index has been dropped.

RDF import failed

call n10s.rdf.import.fetch( "",

I dropped the index and recreated it. it is working now. thanks

Hi, I am getting also problems importing an OWL file, rdf or any other, i get no error just an empty response like this


if i pass nsmntx.ttl as parameter, then it is loaded. using neo4j desktop 1.2.7, neo4j 4.0.3, what could be the issue?

i followed all instructions above, and in the readme and manual.