Here is a stack trace that I get when I try to do upgrade from 1.9.5 to 2.0:
2014-06-17 09:48:27.319+0000 INFO [API] Setting startup timeout to: 120000ms based on -1 Detected incorrectly shut down database, performing recovery.. 2014-06-17 09:48:28.108+0000 DEBUG [API] org.neo4j.server.ServerStartupException: Starting Neo4j Server failed: Error starting org.neo4j.kernel.EmbeddedGraphDatabase, D:\Neo4j\neo4j-enterprise-2.0.0\data\graph.db at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:209) ~[neo4j-server-2.0.0.jar:2.0.0] at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:87) [neo4j-server-2.0.0.jar:2.0.0] at org.neo4j.server.Bootstrapper.main(Bootstrapper.java:50) [neo4j-server-2.0.0.jar:2.0.0] Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.EmbeddedGraphDatabase, D:\Neo4j\neo4j-enterprise-2.0.0\data\graph.db at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:333) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:63) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.graphdb.factory.GraphDatabaseFactory$1.newDatabase(GraphDatabaseFactory.java:92) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:198) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.impl.recovery.StoreRecoverer.recover(StoreRecoverer.java:115) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.server.preflight.PerformRecoveryIfNecessary.run(PerformRecoveryIfNecessary.java:59) ~[neo4j-server-2.0.0.jar:2.0.0] at org.neo4j.server.preflight.PreFlightTasks.run(PreFlightTasks.java:70) ~[neo4j-server-2.0.0.jar:2.0.0] at org.neo4j.server.AbstractNeoServer.runPreflightTasks(AbstractNeoServer.java:319) ~[neo4j-server-2.0.0.jar:2.0.0] at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:144) ~[neo4j-server-2.0.0.jar:2.0.0] ... 2 common frames omitted Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager@2b1eb67d' was successfully initialized, but failed to start. Please see attached cause exception. at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:504) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:115) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:310) ~[neo4j-kernel-2.0.0.jar:2.0.0] ... 10 common frames omitted Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource@1bf5df6a' was successfully initialized, but failed to start. P lease see attached cause exception. at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:504) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:115) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.impl.transaction.XaDataSourceManager.start(XaDataSourceManager.java:164) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:498) ~[neo4j-kernel-2.0.0.jar:2.0.0] ... 12 common frames omitted Caused by: org.neo4j.kernel.impl.storemigration.StoreUpgrader$UpgradingStoreVersionNotFoundException: 'neostore' does not contain a store version, please ensure that the original datab ase was shut down in a clean state. at org.neo4j.kernel.impl.storemigration.UpgradableDatabase.checkUpgradeable(UpgradableDatabase.java:85) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.impl.storemigration.StoreUpgrader.attemptUpgrade(StoreUpgrader.java:72) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.impl.nioneo.store.StoreFactory.tryToUpgradeStores(StoreFactory.java:143) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.impl.nioneo.store.StoreFactory.newNeoStore(StoreFactory.java:123) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource.start(NeoStoreXaDataSource.java:323) ~[neo4j-kernel-2.0.0.jar:2.0.0] at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:498) ~[neo4j-kernel-2.0.0.jar:2.0.0] ... 15 common frames omitted 2014-06-17 09:48:28.109+0000 DEBUG [API] Failed to start Neo Server on port [7474] -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to neo4j+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.