package snapd 2.29.4.2~14.04 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steve_Bz]

Can't update snapd from Ubuntu 16.04. Same issues as earlier releases.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: snapd 2.29.4.2~14.04
ProcVersionSignature: Ubuntu 4.4.0-112.135~14.04.1-generic 4.4.98
Uname: Linux 4.4.0-112-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Sat Feb 10 11:35:06 2018
DuplicateSignature:
 package:snapd:2.29.4.2~14.04
 Setting up snapd (2.29.4.2~14.04) ...
 Failed to execute operation: No such file or directory
 dpkg: error processing package snapd (--configure):
  subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2018-02-08 (1 days ago)
InstallationMedia: Astronomy 16.04 - Release amd64
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.24
SourcePackage: snapd
Title: package snapd 2.29.4.2~14.04 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.