qapt-dbg 2.1.70-0ubuntu1 (amd64 binary) in ubuntu trusty

 QApt is a collection of tools and a library providing a wrapper around
 APT. The intention is to ease the use of APT in Qt-based programs.
 .
 This package contains debugging symbols for QApt.
 When QApt crashes, in most cases this package is
 needed to get a backtrace that is useful for developers. If you have
 experienced a QApt crash without this package
 installed, please install it, try to reproduce the problem and fill a bug
 report with a new backtrace attached.