connecting Xcode4 with SVN server

Are you using xCode 4 with Snow leopard?

In this case, I solved like this. I think this caused by a bug  in Xcode or permission problem in Mac or something though.

1.Launch  the terminal in your mac,
2. type in the terminal   svn ls svn://svnserverURI/Repository
3. And it will ask you password (This is your Mac's password), and then your ID (svn repository ID) and password (svn repository PW) again
4. once you typed correctly, it will show you success.
5. Go to Organizer in Xcode, and hook up repository, then you will see ID/PW and No Revision updated on the work space