how to reconfigure/reinstall 'dpkg'?

[Phillipus Gunawan <mr_phillipus@yahoo.com>]

Hi there,

I broke my box because when im trying to update my box
with unstable system, I change the 'source.list' and
grab packages from testing source.

As a result, (I think) half of the package damage,
including 'dpkg'. Even when I try to install something
with 'dpkg -i' I got error message:

parse error, in file '/var/lib/dpkg/available' near
line 106636 package 'libubit2.11.0c102':
   field name 'larea' must be followed by colon

With dselect, when Im trying to request package to be
installed, the same error come out.

Is there any way I can fix this problem?
Thanks.

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