I wonder what causes this?
angelpc:/mnt/win_h/1lin/debs# dpkg -i zlib1g_1.2.2-3_i386.deb
(Reading database ... dpkg: error processing zlib1g_1.2.2-3_i386.deb (--install):
files list file for package `pkg-config' contains empty filename
Errors were encountered while processing:
zlib1g_1.2.2-3_i386.deb
Processing was halted because there were too many errors.
angelpc:/mnt/win_h/1lin/debs#
It happens these days on every deb packet what I try to install...
Any solution what causes this

I'm using Debian Testing Sarge. PKG-Config is 0.15.0.