package mathematica-fonts (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 30

[cairnsww]

Actually the package seems to have installed without problems, but suddenly I got the message about Ubuntu having its knees in a knot. I think the bug might be with the error reporting!

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: mathematica-fonts (not installed)
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
AptOrdering:
 mathematica-fonts: Install
 mathematica-fonts: Configure
Architecture: amd64
Date: Sun Aug 10 21:03:16 2014
DpkgTerminalLog:
 Preparing to unpack .../mathematica-fonts_16_all.deb ...
 debconf: unable to initialize frontend: Passthrough
 debconf: (Cannot connect to /tmp/aptdaemon-MrGekT/debconf.socket: Connection refused at (eval 34) line 3.)
 debconf: falling back to frontend: Noninteractive
DuplicateSignature: package:mathematica-fonts:(not installed):subprocess new pre-installation script returned error exit status 30
ErrorMessage: subprocess new pre-installation script returned error exit status 30
InstallationDate: Installed on 2014-04-29 (103 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: mathematica-fonts
Title: package mathematica-fonts (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 30
UpgradeStatus: No upgrade log present (probably fresh install)