Exchange 2013 CU18安装失败，出现ADObjectAlreadyExistsException

我正在从Exchange 2013 RTM更新到Exchange 2013 CU18。

Exchange升级目前失败，出现以下错误…

Microsoft Exchange Server 2013累积更新18无人参与安装

复制文件…文件复制完成。 安装程序现在将收集安装所需的其他信息。 语言邮箱angular色：传输服务客户端访问angular色：前端传输服务邮箱angular色：客户端访问服务邮箱angular色：统一消息服务邮箱angular色：邮箱服务pipe理工具客户端访问angular色：客户端访问前端服务

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执行Microsoft Exchange Server先决条件检查

Configuring Prerequisites COMPLETED Prerequisite Analysis COMPLETED 

configurationMicrosoft Exchange Server

 Organization Preparation FAILED The following error was generated when "$error.Clear(); install-GlobalAddressLists -DomainController $RoleDomainController 

“已运行：”Microsoft.Exchange.Data.Directory.ADObjectAlreadyExistsException：活动目录操作在HOSTEX-1.mydomain.cloud上失败。 CN =默认全局地址列表，CN =所有全局地址列表，CN =地址列表包含器，CN =托pipeExchange，CN = Microsoft Exchange，CN =服务，CN =configuration，DC = mydomain，DC =云'已经存在。 —> System.DirectoryServices.Protocols。 DirectoryOperationException：对象存在。 在System.DirectoryServices.Protocols.LdapConnection.ConstructResponse（Int32 messageId，LdapOperation操作，ResultAll resultType，TimeSpan requestTimeOu t，布尔exceptionOnTimeOut）在Microsoft.Exchange System.DirectoryServices.Protocols.LdapConnection.SendRequest（DirectoryReq uest请求，TimeSpan requestTimeout）。 Data.Directory.PooledLdapConnection.SendRequest（Directo ryRequest请求，LdapOperation ldapOperation，Nullable 1 clientSideSearchTimeo ut, IActivityScope activityScope, String callerInfo) at Microsoft.Exchange.Data.Directory.ADDataSession.ExecuteModificationRequest (ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyO bjectSessionOnException, Boolean isSync) --- End of inner exception stack trace --- at Microsoft.Exchange.Data.Directory.ADDataSession.AnalyzeDirectoryError(Pool edLdapConnection connection, DirectoryRequest request, DirectoryException de, In t32 totalRetries, Int32 retriesOnServer)
at Microsoft.Exchange.Data.Directory.ADDataSession.ExecuteModificationRequest (ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyO bjectSessionOnException, Boolean isSync) at Microsoft.Exchange.Data.Directory.ADDataSession.Save(ADObject instanceToSa ve, IEnumerable 1 clientSideSearchTimeo ut, IActivityScope activityScope, String callerInfo) at Microsoft.Exchange.Data.Directory.ADDataSession.ExecuteModificationRequest (ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyO bjectSessionOnException, Boolean isSync) --- End of inner exception stack trace --- at Microsoft.Exchange.Data.Directory.ADDataSession.AnalyzeDirectoryError(Pool edLdapConnection connection, DirectoryRequest request, DirectoryException de, In t32 totalRetries, Int32 retriesOnServer)
at Microsoft.Exchange.Data.Directory.ADDataSession.ExecuteModificationRequest (ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyO bjectSessionOnException, Boolean isSync) at Microsoft.Exchange.Data.Directory.ADDataSession.Save(ADObject instanceToSa ve, IEnumerable 1 clientSideSearchTimeo ut, IActivityScope activityScope, String callerInfo) at Microsoft.Exchange.Data.Directory.ADDataSession.ExecuteModificationRequest (ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyO bjectSessionOnException, Boolean isSync) --- End of inner exception stack trace --- at Microsoft.Exchange.Data.Directory.ADDataSession.AnalyzeDirectoryError(Pool edLdapConnection connection, DirectoryRequest request, DirectoryException de, In t32 totalRetries, Int32 retriesOnServer)
at Microsoft.Exchange.Data.Directory.ADDataSession.ExecuteModificationRequest (ADObject entry, DirectoryRequest request, ADObjectId originalId, Boolean emptyO bjectSessionOnException, Boolean isSync) at Microsoft.Exchange.Data.Directory.ADDataSession.Save(ADObject instanceToSa ve, IEnumerable 1 properties，布尔bypassValidation）
在Microsoft.Exchange.Data.Directory.SystemConfiguration.ADConfigurationSessi on.Save（ADConfigurationObject instanceToSave）at Microsoft.Exchange.Management.Deployment.InstallGlobalAddressLists.CreateD efaultGal（ADObjectId defaultGal）at Microsoft.Exchange.Management.Deployment.InstallGlobalAddressLists.Interna lProcessRecord（ ）在Microsoft.Exchange.Configuration.Tasks.Task.b__b（）
在Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc（String fun cName，Action func，Boolean terminatePipelineIfFailed）“。

Exchange Server安装程序操作未完成。 更多详细信息可以在位于：\ ExchangeSetupLogs文件夹中的ExchangeSetup.log中find。

任何帮助都appriciated！