安装linux-f10-flashplugin10出错

make install clean出现错误……
# make install clean
===>  Vulnerability check disabled, database not found
===>  License check disabled, port has not defined LICENSE
===>  Extracting for linux-f10-flashplugin-10.1r53
=> MD5 Checksum mismatch for flashplugin/10.1r53/install_flash_player_10_linux.tar.gz.
=> SHA256 Checksum mismatch for flashplugin/10.1r53/install_flash_player_10_linux.tar.gz.
=> MD5 Checksum OK for flashplugin/10.1r53/linux-f10-flashsupport-9.0.1.i386.tar.gz.
=> SHA256 Checksum OK for flashplugin/10.1r53/linux-f10-flashsupport-9.0.1.i386.tar.gz.
===>  Refetch for 1 more times files: flashplugin/10.1r53/install_flash_player_10_linux.tar.gz flashplugin/10.1r53/install_flash_player_10_linux.tar.gz
===>  Vulnerability check disabled, database not found
===>  License check disabled, port has not defined LICENSE
=> install_flash_player_10_linux.tar.gz doesn't seem to exist in /usr/ports/distfiles/flashplugin/10.1r53.
=> Attempting to fetch from http://fpdownload.macromedia.com/get/flashplayer/current/.
fetch: http://fpdownload.macromedia.com ... er_10_linux.tar.gz: size mismatch: expected 4760657, actual 4907056
=> Attempting to fetch from ftp://ftp.FreeBSD.org/pub/FreeBS ... ashplugin/10.1r53/.
fetch: ftp://ftp.FreeBSD.org/pub/FreeBS ... er_10_linux.tar.gz: File unavailable (e.g., file not found, no access)
=> Couldn't fetch it - please try to retrieve this
=> port manually into /usr/ports/distfiles/flashplugin/10.1r53 and try again.
*** Error code 1

Stop in /usr/ports/www/linux-f10-flashplugin10.
*** Error code 1

Stop in /usr/ports/www/linux-f10-flashplugin10.
#
如何解决啊？我的是FreeBSD 8.1的版本……

可参考官方手册与 http://wangblog.org/2009/11/freebsd-80-firefox-flash.html