[Bug 930684] [NEW] can't initialize interface: dialog - fall back on interface: readline

[Sam_]

Public bug reported:

Message appears during upgrade. (translated from german)
Terminal output:
debconf: can't initialize interface: Dialog
debconf: (No appropriate Dialog-Program installed, thus Dialog-Interface can't be used. 
at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 75, <> line 50.)
debconf: fall back on interface: Readline

Message repeated twice with
at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 75.)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: debconf 1.5.41ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-15.24-generic 3.2.5
Uname: Linux 3.2.0-15-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Sat Feb 11 17:03:23 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120204)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: debconf
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: debconf (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/930684

Title:
  can't initialize interface: dialog - fall back on interface: readline

Status in “debconf” package in Ubuntu:
  New

Bug description:
  Message appears during upgrade. (translated from german)
  Terminal output:
  debconf: can't initialize interface: Dialog
  debconf: (No appropriate Dialog-Program installed, thus Dialog-Interface can't be used. 
  at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 75, <> line 50.)
  debconf: fall back on interface: Readline

  Message repeated twice with
  at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 75.)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: debconf 1.5.41ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-15.24-generic 3.2.5
  Uname: Linux 3.2.0-15-generic x86_64
  ApportVersion: 1.91-0ubuntu1
  Architecture: amd64
  Date: Sat Feb 11 17:03:23 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120204)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: debconf
  UpgradeStatus: No upgrade log present (probably fresh install)

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