[Bug 1036794] [NEW] Package dependencies cannot be resolved

[Ashutosh]

Public bug reported:

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

Please report this bug against the 'update-manager' package and include the following error message:
'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'

Package dependencies cannot be resolved

This error could be caused by required additional software packages
which are missing or not installable. Furthermore there could be a
conflict between software packages which are not allowed to be installed
at the same time.

The following packages have unmet dependencies:

libnspr4:

----------------
1. Description:	Ubuntu 12.04.1 LTS
Release:	12.04
---------------
2. apt-cache policy libnspr4
libnspr4:
  Installed: 4.8.9-1ubuntu2
  Candidate: 4.8.9-1ubuntu2.1
  Version table:
     4.8.9-1ubuntu2.1 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
 *** 4.8.9-1ubuntu2 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
        100 /var/lib/dpkg/status
----------------
3. Update Manager should work properly

4. Update Manager Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.9
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic i686
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
CurrentDmesg.txt:
 [   49.935139] r8169 0000:01:00.0: eth0: link up
 [   49.935343] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 [   51.500059] init: plymouth-stop pre-start process (1860) terminated with status 1
 [   59.560012] lxcbr0: no IPv6 routers present
 [   59.952011] eth0: no IPv6 routers present
Date: Wed Aug 15 00:22:38 2012
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1344969604
 com.ubuntu.update-manager show-details true
 com.ubuntu.update-manager window-height 664
 com.ubuntu.update-manager window-width 525
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to precise on 2012-03-09 (158 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug be cannot dependencies i386 package precise resolved

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https://bugs.launchpad.net/bugs/1036794

Title:
  Package dependencies cannot be resolved

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  Please report this bug against the 'update-manager' package and include the following error message:
  'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'

  Package dependencies cannot be resolved

  This error could be caused by required additional software packages
  which are missing or not installable. Furthermore there could be a
  conflict between software packages which are not allowed to be
  installed at the same time.

  The following packages have unmet dependencies:

  libnspr4:

  ----------------
  1. Description:	Ubuntu 12.04.1 LTS
  Release:	12.04
  ---------------
  2. apt-cache policy libnspr4
  libnspr4:
    Installed: 4.8.9-1ubuntu2
    Candidate: 4.8.9-1ubuntu2.1
    Version table:
       4.8.9-1ubuntu2.1 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
   *** 4.8.9-1ubuntu2 0
          500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
          100 /var/lib/dpkg/status
  ----------------
  3. Update Manager should work properly

  4. Update Manager Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.9
  ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
  Uname: Linux 3.2.0-29-generic i686
  ApportVersion: 2.0.1-0ubuntu12
  Architecture: i386
  CurrentDmesg.txt:
   [   49.935139] r8169 0000:01:00.0: eth0: link up
   [   49.935343] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
   [   51.500059] init: plymouth-stop pre-start process (1860) terminated with status 1
   [   59.560012] lxcbr0: no IPv6 routers present
   [   59.952011] eth0: no IPv6 routers present
  Date: Wed Aug 15 00:22:38 2012
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1344969604
   com.ubuntu.update-manager show-details true
   com.ubuntu.update-manager window-height 664
   com.ubuntu.update-manager window-width 525
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to precise on 2012-03-09 (158 days ago)

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