package roundcube-core 1.2.1+dfsg.1-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Greg]

After install of Xubuntu 16.10

ProblemType: Package
DistroRelease: Ubuntu 16.10
Package: roundcube-core 1.2.1+dfsg.1-2
ProcVersionSignature: Ubuntu 4.4.0-9136.55-generic 4.4.16
Uname: Linux 4.4.0-9136-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
Date: Wed Sep 7 14:59:20 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2016-09-07 (0 days ago)
InstallationMedia: Xubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160813)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.10ubuntu1
 apt 1.3~rc4ubuntu1
SourcePackage: roundcube
Title: package roundcube-core 1.2.1+dfsg.1-2 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.