synaptic indicates an error when entering

[Juan TTC]

Binary package hint: synaptic

E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.

ProblemType: Bug
Architecture: i386
Date: Sat Mar 8 22:13:05 2008
DistroRelease: Ubuntu 7.10
ExecutablePath: /usr/bin/yelp
Package: yelp 2.20.0-0ubuntu3
PackageArchitecture: i386
ProcCmdline: yelp
ProcCwd: /home/edson
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: yelp
Uname: Linux ubuntu 2.6.22-14-server #1 SMP Tue Feb 12 08:27:05 UTC 2008 i686 GNU/Linux

[Vojtěch Trefný (vojtech.trefny)]

This is not a bug.
To solve your problem just open terminal (Applications→Accesories→Terminal) and use command 'sudo dpkg --configure -a'