portupgrade -f -o ports-mgmt/portupgrade-devel portupgrade

$ portupgrade -f -o ports-mgmt/portupgrade-devel portupgrade
[missing key: categories] [Updating the portsdb <format:bdb_btree> in /var/tmp .
.. - 17343 port entries found .........1000.........2000.........3000.........40
00.........5000.........6000.........7000.........8000.........9000.........1000
0.........11000.........12000.........13000.........14000.........15000.........16000.........17000... ..... done]
missing key: categories: Cannot read the portsdb!
/usr/local/lib/ruby/site_ruby/1.8/portsdb.rb:567:in `open_db': database file error (PortsDB::DBError)
        from /usr/local/lib/ruby/site_ruby/1.8/portsdb.rb:736:in `port'
        from /usr/local/lib/ruby/site_ruby/1.8/portsdb.rb:924:in `all_depends_list'
        from /usr/local/lib/ruby/site_ruby/1.8/pkgdb.rb:915:in `tsort_build'
        from /usr/local/lib/ruby/site_ruby/1.8/pkgdb.rb:907:in `each'
        from /usr/local/lib/ruby/site_ruby/1.8/pkgdb.rb:907:in `tsort_build'
        from /usr/local/lib/ruby/site_ruby/1.8/pkgdb.rb:929:in `sort_build'
        from /usr/local/lib/ruby/site_ruby/1.8/pkgdb.rb:933:in `sort_build!'
        from /usr/local/sbin/portupgrade:694:in `main'
        from /usr/local/lib/ruby/1.8/optparse.rb:755:in `initialize'
        from /usr/local/sbin/portupgrade:210:in `new'
        from /usr/local/sbin/portupgrade:210:in `main'
        from /usr/local/sbin/portupgrade:1981