用post安装svn出错了，请大侠帮忙解决一下

CU140# make

WebDAV/Delta-V repository access module enabled.

db4 repository backend enabled.

mod_dav_svn module for Apache 2.X enabled.
This option implies the WITH_APACHE2_APR option.

Using APR from www/apache22.  If you have the devel/apr
port/package installed, you may need to remove it.

mod_dontdothat module for Apache 2.X enabled.
This option implies the WITH_MOD_DAV_SVN option.

You can have the repository created for you by defining
WITH_REPOSITORY_CREATION.

Make sure that:
* all your svn users are members of a common group
* this group is the group id of the db/ and locks/
  subdirectories of your repository
* the above subdirectories are writable by this group

Many useful scripts will be installed into /usr/local/share/subversion
===>  subversion-1.6.0_2 has known vulnerabilities:
=> subversion -- heap overflow vulnerability.
   Reference: <http://portaudit.FreeBSD.org/bce ... a-001a4d49522b.html>
=> Please update your ports tree and try again.
*** Error code 1

Stop in /usr/ports/devel/subversion.
*** Error code 1

Stop in /usr/ports/devel/subversion.

Please update your ports tree and try again.

本人对freebsd不是很了解，刚刚接触，能说具体点吗