Downgrading of modules is not supported.
Module 'alfresco-share-services' version 17.184 is currently installed and must be uninstalled before version 6.2.1 can be installed.
at org.alfresco.error.AlfrescoRuntimeException.create(AlfrescoRuntimeException.java:52)
at org.alfresco.repo.module.ModuleComponentHelper.startModule(ModuleComponentHelper.java:633)
