Neo4j無法啟動

Question

我正在嘗試使用Java運行Neo4j數據庫，但它給了我以下錯誤：

java.lang.RuntimeException: Error starting org.neo4j.kernel.EmbeddedGraphDatabase, /home/matteo/neo4j-community-2.2.2/data/graph.db
    at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:334)
    at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:59)
    at org.neo4j.graphdb.factory.GraphDatabaseFactory.newDatabase(GraphDatabaseFactory.java:108)
    at org.neo4j.graphdb.factory.GraphDatabaseFactory$1.newDatabase(GraphDatabaseFactory.java:95)
    at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:176)
    at org.neo4j.graphdb.factory.GraphDatabaseFactory.newEmbeddedDatabase(GraphDatabaseFactory.java:67)
    at Getter.main(Getter.java:46)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.extension.KernelExtensions@2e9a2123' failed to initialize. Please see attached cause exception.
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:489)
    at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:72)
    at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:106)
    at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:330)
    ... 6 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.index.lucene.LuceneKernelExtension@1c3c1d18' failed to initialize. Please see attached cause exception.
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:489)
    at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:72)
    at org.neo4j.kernel.extension.KernelExtensions.init(KernelExtensions.java:74)
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:483)
    ... 9 more
Caused by: java.lang.NoSuchFieldError: LUCENE_36
    at org.neo4j.index.impl.lucene.LuceneDataSource.<clinit>(LuceneDataSource.java:88)
    at org.neo4j.index.lucene.LuceneKernelExtension.init(LuceneKernelExtension.java:52)
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:483)
    ... 12 more

問題出在哪兒？？ 非常感謝你！ 馬特奧

Answer 1

由於您正在運行嵌入式Neo4j，因此看起來您的類路徑中缺少lucene-core-3.6.2.jar 。

最佳實踐是使用支持傳遞性依賴項（例如gradle或maven）的構建系統。 對於最簡單的人來說，這取決於neo4j-community工件，例如http://mvnrepository.com/artifact/org.neo4j/neo4j/2.2.5 。 這將拉入所有其他需要的罐子。