问题
I've installed Neo4j Community v2.1.1 in a Windows 7 x64 environment, then tried to play around with sample datasets (drwho, cineast, etc.) but couldn't load any of them. Returned error is "Starting Neo4j Server failed: Error starting org.neo4j.kernel.EmbeddedGraphDatabase". Setting allow_store_upgrade=true in {sample dataset folder}/neo4j.properties didn't solve it out.
来源：https://stackoverflow.com/questions/24042383/neo4j-2-1-1-sample-datasets-not-working