Upon starting Neo4j 3.5 if one encounters the following error in the logs/neo4j.log

Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.extension.GlobalKernelExtensions@14c16d' failed to initialize. Please see the attached cause exception "org.neo4j.kernel.impl.logging.LogService".
        at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:434)
        at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:66)
        at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:102)
        at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:203)
        ... 9 more
Caused by: java.lang.NoClassDefFoundError: org/neo4j/kernel/impl/logging/LogService
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.privateGetPublicMethods(Class.java:2902)
        at java.lang.Class.getMethods(Class.java:1615)
        at sun.misc.ProxyGenerator.generateClassFile(ProxyGenerator.java:451)
        at sun.misc.ProxyGenerator.generateProxyClass(ProxyGenerator.java:339)
        at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:639)
        at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557)
        at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230)
        at java.lang.reflect.WeakCache.get(WeakCache.java:127)
        at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419)
        at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:719)
        at org.neo4j.kernel.impl.util.DependenciesProxy.dependencies(DependenciesProxy.java:55)
        at org.neo4j.kernel.extension.AbstractKernelExtensions.getKernelExtensionDependencies(AbstractKernelExtensions.java:111)
        at org.neo4j.kernel.extension.AbstractKernelExtensions.init(AbstractKernelExtensions.java:59)
        at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:413)
        ... 12 more
Caused by: java.lang.ClassNotFoundException: org.neo4j.kernel.impl.logging.LogService
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 28 more

this is usually indicative of a incompatible APOC jar file installed into $NEO4J_HOME/plugins. With Neo4j 3.5.0 the correct APOC jar to use so as to avoid this error is

ls -al apoc*
-rw-rw-r-- 1 neo4j neo4j 12880869 Nov 30 11:49 apoc-3.5.0.1-all.jar

This jar is available at here

Details


Author:

Applicable versions:

Keywords:
APOClogServiceneo4j-3.5startupgrade