用ports安装mysql51-server出现无法找到下载服务器

volf420

root@test[/usr/ports/databases/mysql51-server]> make install clean ; rehash
===>  Vulnerability check disabled, database not found

You may use the following build options:

        WITH_CHARSET=charset    Define the primary built-in charset (latin1).
        WITH_XCHARSET=list      Define other built-in charsets (may be 'all').
        WITH_COLLATION=collate  Define default collation (latin1_swedish_ci).
        WITH_OPENSSL=yes        Enable secure connections.
        WITH_LINUXTHREADS=yes   Use the linuxthreads pthread library.
        WITH_PROC_SCOPE_PTH=yes Use process scope threads
                                (try it if you use libpthread).
        BUILD_OPTIMIZED=yes     Enable compiler optimizations
                                (use it if you need speed).
        BUILD_STATIC=yes        Build a static version of mysqld.
                                (use it if you need even more speed).
        WITH_NDB=yes            Enable support for NDB Cluster.

=> mysql-5.1.22-rc.tar.gz doesn't seem to exist in /usr/ports/distfiles/.
.> Attempting to fetch from
: No such file or directory
=> Attempting to fetch from ftp://ftp.easynet.be/mysql/Downloads/MySQL-5.1/.
: No such file or directory
=> Attempting to fetch from ftp://ftp.fi.muni.cz/pub/mysql/Downloads/MySQL-5.1/.
: No such file or directory
=> Attempting to fetch from http://mysql.mirrors.cybercity.dk/Downloads/MySQL-5.1/.
: No such file or directory
。
。
。
=> Attempting to fetch from ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles/.
: No such file or directory
=> Couldn't fetch it - please try to retrieve this
=> port manually into /usr/ports/distfiles/ and try again.
*** Error code 1

Stop in /usr/ports/databases/mysql51-server.

出现以上信息，如何解决！！！

freemongolia

是否修改过/etc/make.conf文件？如果修改过请还原该文件再试试。