Content management system 将alfersco 6.2（使用治理服务6.2）降级为alfresco 5.2（使用记录管理2.7b）

我们能否将alfersco 6.2（使用治理服务6.2）降级为alfresco 5.2（使用记录管理2.7b）？ 我试过了，但是得到了这个错误

Caused by: org.alfresco.error.AlfrescoRuntimeException: 07200018 
Downgrading of modules is not supported.
Module 'org_alfresco_module_rm' version 3.0 is currently installed and must be uninstalled before version 2.7 can be installed.
    at org.alfresco.error.AlfrescoRuntimeException.create(AlfrescoRuntimeException.java:52)
    at org.alfresco.repo.module.ModuleComponentHelper.startModule(ModuleComponentHelper.java:633)
    at org.alfresco.repo.module.ModuleComponentHelper.access$5(ModuleComponentHelper.java:530)
    at org.alfresco.repo.module.ModuleComponentHelper$1$1.execute(ModuleComponentHelper.java:263)
    at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:464)
    at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:352)
    at org.alfresco.repo.module.ModuleComponentHelper$1.doWork(ModuleComponentHelper.java:284)
    ... 45 more
2020-08-20 11:26:01,248 WARN  [org.springframework.web.context.support.XmlWebApplicationContext] [localhost-startStop-1] Exception thrown from ApplicationListener handling ContextClosedEvent
java.lang.NullPointerException
    at org.alfresco.repo.workflow.activiti.ActivitiEngineInitializer.onShutdown(ActivitiEngineInitializer.java:65)
    at org.springframework.extensions.surf.util.AbstractLifecycleBean.onApplicationEvent(AbstractLifecycleBean.java:67)
    at org.alfresco.repo.management.SafeApplicationEventMulticaster.multicastEventInternal(SafeApplicationEventMulticaster.java:214)
    at org.alfresco.repo.management.SafeApplicationEventMulticaster.multicastEvent(SafeApplicationEventMulticaster.java:190)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334)
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1055)
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1016)
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:586)
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:143)
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:5165)
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5829)
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:221)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:149)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:679)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1966)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:748)

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如果有人知道怎么做，你能帮我看看是否有可能降级吗？

你有两个问题。首先，你有一个或多个安培，你正试图降级。在日志中显示RM AMP。也许你还有其他人，我说不出来

一旦安装了较新版本的AMP，就不能对其降级。您必须首先使用MMT卸载它。有时候，这就足够了。其他时候，您必须实际进入系统存储区，找到模块并将其删除

一旦您摆脱了较新的AMP，并且成功地启动了服务器，您就可以关闭并安装较旧的AMP

现在我们来看第二个问题，即您正在尝试降级存储库。如果模式在您要从和降级到的版本中匹配，这可能会起作用。如果模式不匹配，我怀疑如果您不编写一些脚本来从本质上撤销升级所做的模式更改，它是否会起作用

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Alfresco release提供了一个模式列表。

通常，但不总是，Alfresco只支持升级而不支持降级。您使用的是Alfresco Enterprise还是Community？Alfresco Community 6.2