Authentication failure when SVNParentPath used

Hello Everybody

I regret for bugging you once again.
Apache authentication for the particular repository is failing when i use
SVNParentPath, but working well when i use repo:/ instead of folder1:/repo1
in svnauthz file even without changing the apache configuration.

I'll show my configuration below

SVNAuthz file.

[folder1:/repo1]
john = rw
joe = rw

Apache configuration

<Location /parentfolder/folder1>
                Order allow,deny
                Allow from all
                DAV svn
                SVNParentPath /srv/svn/parentfolder/folder1
                AuthType Basic
                AuthName "svn repository"
                AuthUserFile /srv/svn/config/userauthentication.conf
                Require valid-user
                AuthzSVNAccessFile /srv/svn/config/svnauthz.conf
</Location>

Please assist me in resolving the issue.
Received on 2013-01-15 14:52:12 CET