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PONeo4J HelloWorld is not working
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  1. PONeo4J HelloWorld is not working
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    copied!<p>I am new at Neo4J and following the HelloWorld tutorial on the neo4j website ( <a href="http://docs.neo4j.org/chunked/milestone/tutorials-java-embedded-hello-world.html" rel="nofollow">http://docs.neo4j.org/chunked/milestone/tutorials-java-embedded-hello-world.html</a>).</p> <p>My purpose is to create 2 nodes and a relationship between them and finally observe this on the dashboard accessible via </p> <pre><code>[http://localhost:7474/webadmin/#] </code></pre> <p>But the problem is that i am getting an error when i run my code and i don't know how to solve it.</p> <p>Any help would be really appreciated</p> <p>Thank you very much</p> <p>Here is my code and the error</p> <p><strong>Code</strong></p> <pre><code>import org.neo4j.graphdb.GraphDatabaseService; import org.neo4j.graphdb.Node; import org.neo4j.graphdb.Relationship; import org.neo4j.graphdb.RelationshipType; import org.neo4j.graphdb.Transaction; import org.neo4j.graphdb.factory.GraphDatabaseFactory; public class HelloNeo4J { private static enum RelTypes implements RelationshipType { KNOWS } public static String DB_PATH= " /home/anas/graph/data/graph.db/" ; public static void main ( String[] args){ GraphDatabaseService graphDb= new GraphDatabaseFactory().newEmbeddedDatabase( DB_PATH ); Node firstNode, secondNode; Relationship relationship; Transaction tx = graphDb.beginTx(); try { firstNode = graphDb.createNode(); firstNode.setProperty( "message", "Hello, " ); secondNode = graphDb.createNode(); secondNode.setProperty( "message", "World!" ); relationship = firstNode.createRelationshipTo( secondNode, RelTypes.KNOWS ); relationship.setProperty( "message", "brave Neo4j " ); tx.success(); } finally { tx.finish(); } } } </code></pre> <p><strong>Error</strong></p> <pre><code>Exception in thread "main" org.neo4j.kernel.lifecycle.LifecycleException: Failed to transition org.neo4j.kernel.AbstractGraphDatabase$DefaultKernelExtensionLoader@691f36 from NONE to STOPPED at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:388) at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:82) at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:116) at org.neo4j.kernel.AbstractGraphDatabase.run(AbstractGraphDatabase.java:224) at org.neo4j.kernel.EmbeddedGraphDatabase.&lt;init&gt;(EmbeddedGraphDatabase.java:79) at org.neo4j.graphdb.factory.GraphDatabaseFactory$1.newDatabase(GraphDatabaseFactory.java:70) at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:195) at org.neo4j.graphdb.factory.GraphDatabaseFactory.newEmbeddedDatabase(GraphDatabaseFactory.java:56) at HelloNeo4J.main(HelloNeo4J.java:20) Caused by: java.lang.VerifyError: class org.neo4j.kernel.InternalAbstractGraphDatabase overrides final method getStoreDir.()Ljava/lang/String; at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:634) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) at org.neo4j.index.lucene.LuceneIndexProvider.load(LuceneIndexProvider.java:65) at org.neo4j.kernel.AbstractGraphDatabase$DefaultKernelExtensionLoader.loadIndexImplementations(AbstractGraphDatabase.java:1180) at org.neo4j.kernel.AbstractGraphDatabase$DefaultKernelExtensionLoader.init(AbstractGraphDatabase.java:1152) at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:382) ... 8 more </code></pre>
 

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