Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).

1.使用已有数据库时，报错

C:\Users\h>neo4j.bat console
2020-06-17 14:17:48.851+0000 WARN dbms.active_database is deprecated.
2020-06-17 14:17:48.870+0000 INFO ======== Neo4j 3.5.5 ========
2020-06-17 14:17:48.886+0000 INFO Starting...
2020-06-17 14:17:50.836+0000 INFO Starting upgrade of database
2020-06-17 14:17:50.851+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@ec2cc4' was successfully initialized, but failed to start. Please see the attached cause exception "Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).". Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@ec2cc4' was successfully initialized, but failed to start. Please see the attached cause exception "Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).".
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@ec2cc4' was successfully initialized, but failed to start. Please see the attached cause exception "Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).".
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:45)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:187)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:123)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:90)
at org.neo4j.server.CommunityEntryPoint.main(CommunityEntryPoint.java:32)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase@ec2cc4' was successfully initialized, but failed to start. Please see the attached cause exception "Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:180)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory, D:\Neo4j\neo4j-community-3.5.5\data\databases
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:229)
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:146)
at org.neo4j.server.database.CommunityGraphFactory.newGraphDatabase(CommunityGraphFactory.java:41)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:90)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.NeoStoreDataSource@5c08c46a' was successfully initialized, but failed to start. Please see the attached cause exception "Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.kernel.impl.transaction.state.DataSourceManager.start(DataSourceManager.java:116)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:224)
... 9 more
Caused by: org.neo4j.kernel.impl.storemigration.StoreUpgrader$UnexpectedUpgradingStoreVersionException: Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).
at org.neo4j.kernel.impl.storemigration.UpgradableDatabase.checkUpgradable(UpgradableDatabase.java:121)
at org.neo4j.kernel.impl.storemigration.StoreUpgrader.migrateStore(StoreUpgrader.java:141)
at org.neo4j.kernel.impl.storemigration.StoreUpgrader.migrateIfNeeded(StoreUpgrader.java:122)
at org.neo4j.kernel.impl.storemigration.DatabaseMigrator.migrate(DatabaseMigrator.java:101)
at org.neo4j.kernel.NeoStoreDataSource.upgradeStore(NeoStoreDataSource.java:496)
at org.neo4j.kernel.NeoStoreDataSource.start(NeoStoreDataSource.java:344)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 14 more
2020-06-17 14:17:50.863+0000 INFO Neo4j Server shutdown initiated by request

2.原因：版本不兼容

（1）依据：

Caused by: org.neo4j.kernel.impl.storemigration.StoreUpgrader$UnexpectedUpgradingStoreVersionException: Not possible to upgrade a store with version 'v0.A.3' to current store version `v0.A.9` (Neo4j 3.5.5).

可以看出，store版本和Neo4j版本要一一对应，v0.A.9 (Neo4j 3.5.5)是我现在使用的版本，v0.A.3应该就是数据库版本了，查了半天才查到版本对应关系，不容易【需要fanqiang】：

（2）store版本——Neo4j版本

参考：https://neo4j.com/developer/kb/store-format-versions/

Standard Store Versions

Store Format Name             Store Format Version              Neo4j Server Version
STANDARD_V2_0                      v0.A.1                                        2.0.0

STANDARD_V2_1                      v0.A.3                                        2.1.0

STANDARD_V2_2                      v0.A.5                                        2.2.0

STANDARD_V2_3                      v0.A.6                                        2.3.0

STANDARD_V3_0                      v0.A.7                                        3.0.0

STANDARD_V3_2                      v0.A.8                                        3.2.0

STANDARD_V3_4                      v0.A.9                                        3.4.0

High Limit Store Versions 

Store Format Name             Store Format Version             Neo4j Server Version
HIGH_LIMIT_V3_0_0                    vE.H.0                                     3.0.0
HIGH_LIMIT_V3_0_6                    vE.H.0b                                   3.0.6
HIGH_LIMIT_V3_1_0                    vE.H.2                                     3.1.0
HIGH_LIMIT_V3_2_0                    vE.H.3                                     3.2.0
HIGH_LIMIT_V3_4_0                    vE.H.4                                     3.4.0

3.查询存储版本Inspecting a store’s format

You can use the neo4j-admin store-info against an offline store to find out what format it is using. Example:

$ ./bin/neo4j-admin store-info --store=data/databases/mygraph.db

#使用时候改一下路径：
D:\Neo4j\neo4j-community-3.5.5\bin>neo4j-admin store-info --store=D:\Neo4j\neo4j-community-3.5.5/data/databases/graph.db

输出结果：
Store format version:         v0.A.9
Store format introduced in:   3.4.0