[Bug 1535035] [NEW] i have been trying to upgrade to 15.10 from 14.04 lts and it says error some atuhenticate packages . please i need help . i thought deleting them would help but it didnt

[Warsame Ali]

Public bug reported:

Description:	Ubuntu 14.04.3 LTS
Release:	14.04

N: Unable to locate package pkgname

i wanted to upgrade to 15.10


it says error  cant authencate some packages

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.8
ProcVersionSignature: Ubuntu 3.19.0-46.52~14.04.1-generic 3.19.8-ckt12
Uname: Linux 3.19.0-46-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Sat Jan 16 23:14:40 2016
InstallationDate: Installed on 2015-09-02 (136 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2016-01-17 (0 days ago)
mtime.conffile..etc.update.manager.release.upgrades: 2016-01-16T21:36:30.658467

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade trusty

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https://bugs.launchpad.net/bugs/1535035

Title:
  i have been trying to upgrade to 15.10 from 14.04 lts and it says
  error some atuhenticate packages . please i need help . i thought
  deleting them would help but it didnt

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04

  N: Unable to locate package pkgname

  i wanted to upgrade to 15.10

  
  it says error  cant authencate some packages

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.19.0-46.52~14.04.1-generic 3.19.8-ckt12
  Uname: Linux 3.19.0-46-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Sat Jan 16 23:14:40 2016
  InstallationDate: Installed on 2015-09-02 (136 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-01-17 (0 days ago)
  mtime.conffile..etc.update.manager.release.upgrades: 2016-01-16T21:36:30.658467

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