Install WSUS on Windows server2012 error

In order to investigate the new Cluster-Aware Updating function in Windows 8, I need to set up a WSUS server in my Cloud environment. However, after I install the WSUS from the "Add role and feature" in the Server Management, the function doesn't work. it keep on showing the following error.

2012-12-27 08:48:05  Postinstall started

2012-12-27 08:48:05  Detected role services: Api, UI, WidDatabase, Services

2012-12-27 08:48:05  Start: LoadSettingsFromXml

2012-12-27 08:48:05  Start: GetConfigValue with filename=UpdateServices-Services.xml item=ContentLocal

2012-12-27 08:48:05  Value is true

2012-12-27 08:48:05  End: GetConfigValue

2012-12-27 08:48:05  Start: GetConfigValue with filename=UpdateServices-Services.xml item=ContentDirectory

2012-12-27 08:48:05  Value is C:\WSUS

2012-12-27 08:48:05  End: GetConfigValue

2012-12-27 08:48:05  Content directory is C:\WSUS

2012-12-27 08:48:05  Database roleservice is not installed

2012-12-27 08:48:05  End: LoadSettingsFromXml

Post install is starting

2012-12-27 08:48:05  Start: Run

2012-12-27 08:48:05  Configuring content directory...

2012-12-27 08:48:05  Configuring groups...

2012-12-27 08:48:05  Starting group configuration for WSUS Administrators...

2012-12-27 08:48:05  Group does not already exist in the registry

2012-12-27 08:48:05  Searching for existing group...

2012-12-27 08:48:05  Group was not fount attempt to create it...

2012-12-27 08:48:05  System.DirectoryServices.AccountManagement.PrincipalOperationException: The specified procedure could not be found.

---> System.Runtime.InteropServices.COMException: The specified procedure could not be found.



   at System.DirectoryServices.DirectoryEntry.CommitChanges()

   at System.DirectoryServices.AccountManagement.SDSUtils.ApplyChangesToDirectory(Principal p, StoreCtx storeCtx, GroupMembershipUpdater updateGroupMembership, NetCred credentials, AuthenticationTypes authTypes)

   --- End of inner exception stack trace ---

   at System.DirectoryServices.AccountManagement.SDSUtils.ApplyChangesToDirectory(Principal p, StoreCtx storeCtx, GroupMembershipUpdater updateGroupMembership, NetCred credentials, AuthenticationTypes authTypes)

   at System.DirectoryServices.AccountManagement.SDSUtils.InsertPrincipal(Principal p, StoreCtx storeCtx, GroupMembershipUpdater updateGroupMembership, NetCred credentials, AuthenticationTypes authTypes, Boolean needToSetPassword)

   at System.DirectoryServices.AccountManagement.SAMStoreCtx.Insert(Principal p)

   at Microsoft.UpdateServices.Administration.ConfigureGroups.FetchOrCreateGroup(PrincipalContext context, String name, String description)

   at Microsoft.UpdateServices.Administration.ConfigureGroups.SetupGroup(PrincipalContext context, String groupName, String description, String registryValue)

   at Microsoft.UpdateServices.Administration.ConfigureGroups.Run(Action`1 logWriter)

   at Microsoft.UpdateServices.Administration.PostInstall.Run()

   at Microsoft.UpdateServices.Administration.PostInstall.Execute(String[] arguments)

Fatal Error: The specified procedure could not be found.

I googled the error in this warning text,nothing found. Then I turn to investigate "System.DirectoryServices.AccountManagement.PrincipalOperationException". I start to consider this is caused by some feature of .NET installation. So I try to install the all functions of .NET framework.

Then I start the WSUS again, the post-installation is succeed.