package snapd 2.27.6~14.04 failed to install/upgrade: subprocess new pre-removal script returned error exit status 5

[Yatin Grover]

when new update's start to install before complete the installation. That kind of bug pop up and stop the process. It's shows the message i.e. incomplete the installation due to some error and shows two system report and ccancel

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: snapd 2.27.6~14.04
ProcVersionSignature: Ubuntu 4.4.0-101.124~14.04.1-generic 4.4.95
Uname: Linux 4.4.0-101-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.14
Architecture: amd64
Date: Wed Dec 13 22:05:00 2017
ErrorMessage: subprocess new pre-removal script returned error exit status 5
InstallationDate: Installed on 2017-02-23 (293 days ago)
InstallationMedia: Ubuntu 14.04.4 LTS "Trusty Tahr" - Release amd64 (20160217.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.3
 apt 1.2.24
SourcePackage: snapd
Title: package snapd 2.27.6~14.04 failed to install/upgrade: subprocess new pre-removal script returned error exit status 5
UpgradeStatus: Upgraded to xenial on 2017-09-25 (79 days ago)

[John Lenton (chipaca)]

I suspect you've been able to resolve this, sorry we never got back to you about it.

I'm closing it as "Won't fix", because we didn't do anything about this, but if you're still stuck there's probably a cause for this that isn't necessarily snapd itself and we can probably figure it out.

Again, sorry.