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From: "Nilton Jose Rizzo" <rizzo@i805.com.br>
To: freebsd-current@freebsd.org
Subject: problem with portupgrade/pkg/ backup
Date: Thu, 3 Oct 2013 19:32:45 -0300
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Hi all,

see the error message below ( command portupgrade -rR xorg )

--->  Backing up the old version
pkg: No installed package matching ".txz" found

** Backup failed.
--->  Skipping 'x11/xinput' (xinput-1.6.0) because a requisite package
'libXrandr-1.4.1' (x11/libXrandr) failed (specify -k to force)
--->  Skipping 'x11/xterm' (xterm-296) because a requisite package
'libXpm-3.5.10' (x11/libXpm) failed (specify -k to force)
--->  Skipping 'x11-servers/xorg-server' (xorg-server-1.7.7_8,1) because a
requisite package 'libXpm-3.5.10' (x11/libXpm) failed (specify -k to force)
--->  Skipping 'x11-drivers/xf86-video-intel' (xf86-video-intel-2.7.1_4)
because a requisite package 'libXv-1.0.9,1' (x11/libXv) failed (specify -k to
force)
--->  Skipping 'x11-drivers/xf86-video-vesa' (xf86-video-vesa-2.3.2) because a
requisite package 'libXpm-3.5.10' (x11/libXpm) failed (specify -k to force)
** Listing the failed packages (-:ignored / *:skipped / !:failed)
        ! graphics/cairo (cairo-1.10.2_5,2)     (backup error)
        ! x11-toolkits/libXmu (libXmu-1.1.1,1)  (backup error)
        ! x11/libXv (libXv-1.0.9,1)     (backup error)
        ! x11/libXpm (libXpm-3.5.10)    (backup error)
        * x11-toolkits/libXaw (libXaw-1.0.11,2)
        ! x11/libXrandr (libXrandr-1.4.1)       (backup error)
        * x11/xinput (xinput-1.6.0)
        * x11/xterm (xterm-296)
        * x11-servers/xorg-server (xorg-server-1.7.7_8,1)
        * x11-drivers/xf86-video-intel (xf86-video-intel-2.7.1_4)
        * x11-drivers/xf86-video-vesa (xf86-video-vesa-2.3.2)

Some port that I try update via portupgrade show this ...
if I give the command 
       make clean reinstall clean 

all ports marked as backup error can be updated

Any idea to solve this?