[MacPorts] #19590: selfupdate fails

[MacPorts]

#19590: selfupdate fails
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 Reporter:  ali_kaylan@…            |       Owner:  macports-tickets@…                   
     Type:  defect                  |      Status:  new                                  
 Priority:  Normal                  |   Milestone:                                       
Component:  ports                   |     Version:  1.7.0                                
 Keywords:  "unknown group" 501     |        Port:                                       
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 after installing the software with the finder and executing:

 sudo port -d selfupdate

 installation fails with:

 [ ! -f /opt/local/etc/macports/mp_version ] || rm -vf
 /opt/local/etc/macports/mp_version
 ===> making install in doc
 /usr/bin/install -c -d -o root -g 501 -m 755 /opt/local
 /usr/bin/install -c -d -o root -g 501 -m 755 /opt/local/etc/macports
 cat prefix.mtree | /usr/sbin/mtree -U -e -p /opt/local > /dev/null
 mtree: line 6: unknown group 501
 make[1]: *** [install] Error 1
 make: *** [install] Error 1

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Ticket URL: <http://trac.macports.org/ticket/19590>
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