We are facing the same error since some times too, now on version 4.4.13. Would be terrific if Neo4j can share the correct values for those settings to avoid this issue.
I faced the same issue. Using the Jar from Maven, Github releases - always the identical error: Failed to find data source: org.neo4j.spark.DataSource. And indeed, the provided jar doesn't contain that class.
However, if you use the Jars provided at ...