package man-db 2.5.7-4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[sang69]

have no idea why im getting this. Have been trying to upgrade but have been having numerous problems

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: man-db 2.5.7-4
ProcVersionSignature: Ubuntu 2.6.35-32.67-generic 2.6.35.14
Uname: Linux 2.6.35-32-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sun Mar 11 18:22:15 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
SourcePackage: man-db
Title: package man-db 2.5.7-4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to natty on 2012-03-10 (1 days ago)

[Colin Watson (cjwatson)]

debconf: DbDriver "templatedb": /var/cache/debconf/templates.dat is locked by another process: Resource temporarily unavailable

This indicates that another package management program is running, perhaps in the background. The remedy is to find it and shut it down. It is not a bug in man-db, even though man-db is affected by it (along with many other packages).