portupgrade portupgrade leaves an error....

[David J Brooks]

After running 'portupgrade portupgrade' I am left with the following error 
when I run portversion or portupgrade, or pretty much any program that 
addresses the ports collection:

/libexec/ld-elf.so.1: /usr/local/lib/ruby/site_ruby/1.8/i386-freebsd6/bdb.so: 
Undefined symbol "db_version"

Any ideas on how to fix it?

David
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