apt-file problem

[Arash Bijanzadeh]

tryingto search with apt-file gives me this error message:
Can't locate object method "host" via package "URI::_foreign" at /usr/bin/
apt-file line 225

How can I solve it?
-- 
Don't go around saying the world owes you a living.  The world owes you
nothing.  It was here first.
                -- Mark Twain