rubyとかportupgradeしてたら、 [hoge.example:/usr/ports/sysutils/portupgrade]sudo pkgdb -u ---> Updating the pkgdb [Updating the pkgdb <format:bdb_btree> in /var/db/pkg ... /var/db/pkg/pkgdb.db: unexpected file type or format -- Invalid argument; rebuild needed] [Rebuilding the pkgdb <format:bdb_btree> in /var/db/pkg ... /var/db/pkg/pkgdb.db: unexpected file type or format -- Invalid argument: Cannot upda