apt transaction returned result exit-failed

[subit datta]

i can't update my os ( ubuntu). please help me.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.22
ProcVersionSignature: Ubuntu 4.10.0-32.36~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-32-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Fri Aug 18 01:29:28 2017
InstallationDate: Installed on 2017-08-17 (0 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)

[Robert Ancell (robert-ancell)]

What steps are you doing to trigger this?

[Launchpad Janitor (janitor)]

[Expired for gnome-software (Ubuntu) because there has been no activity for 60 days.]