I am using GDS 2.3.6 and Neo4j 4.4.20
I can CALL gds.graph.project and trained graph using CALL gds.beta.graphSage.train
When I try to attempt CALL gds.beta.graphSage.stream or gds.beta.graphSage.write it throws an error as Caused by: java.lang.NullPointerException, whats the cause behind this and how to solve it?
@samantha can you share more details?
The stacktrace would be useful, which is either given in as part of the error message, or in the debug.log.
We did find a bug in progress tracking, which we fixed in 2.5.0.
Hi! I am also receiving this issue when simply trying to use graphsage on the movie neo4j graph. Here's the error and the stack trace: Neo.ClientError.Procedure.ProcedureCallFailed
Failed to invoke procedure gds.beta.graphSage.train: Caused by: java.lang.NullPointerException: Cannot invoke "org.neo4j.gds.core.loading.SingleTypeRelationships.topology()" because the return value of "java.util.Map.get(Object)" is null
Hey @asiyah.ahmad12 ,
can you share your projection and GS query for the movie neo4j graph?