Apple Xcode and Subversion

Hi,

I'm trying to use Apple Xcode's Subversion integration but failed at
authentication.

I've been using SVN on Linux and Mac OS X for quite some time. All
this while, I'm using the console svn+ssh to check out and in
workcopy and have no problem.

I'm using Dynamic IP and only svn+ssh protocol. The server is on
Linux. I point the password file to /etc/svn/userlist1. I have no
trouble checking in and out on Linux, Mac and Solaris.

I imported an Xcode project into my svn repository. Have no problem
check out a workcopy after the import. I configured Xcode SCM
according to Apple's website http://insideapple.apple.com/redir/
303569/452_103/14ed8a2ca45edffaa7b99009589446a6

After I configured SCM, a window popped up, displaying:

Host: aaa.bbb.ccc.ddd
Path: svn/projects/abcde/trunk
Account:
Passphrase:

The Account was empty and I was not able to edit. I entered
passphrase and clicked "Authenticate".

It gave me an error message: "Authentication fail. Try again."

What causes the problem? Does Xcode work with svn+ssh? Do I need to
setup WebSVN for Xcode/SCM to work?

Thanks and best regards,

--
"If you missed the rising sun and the morning dew, don't miss the  
beautiful sunset." -- Adrian Hoe inspired by Michal Nowak, June 15 2004
http://adrianhoe.com