Installed KDE on machine with Gnome. Package failure prevents prompt to use KDE

.xsession-errors:

openConnection: connect: No such file or directory
cannot connect to brltty at :0
upstart: update-notifier-crash (/var/crash/kde-config-telepathy-accounts.0.crash) main process (3665) terminated with status 1

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: kde-config-telepathy-accounts 4:15.12.3-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Sun Sep 4 12:53:51 2016
DuplicateSignature:
 package:kde-config-telepathy-accounts:4:15.12.3-0ubuntu1
 Unpacking kde-config-telepathy-accounts (4:15.12.3-0ubuntu1) ...
 dpkg: error processing archive /var/cache/apt/archives/kde-config-telepathy-accounts_4%3a15.12.3-0ubuntu1_amd64.deb (--unpack):
  trying to overwrite '/usr/share/accounts/services/google-im.service', which is also in package account-plugin-google 0.12+16.04.20160126-0ubuntu1
ErrorMessage: trying to overwrite '/usr/share/accounts/services/google-im.service', which is also in package account-plugin-google 0.12+16.04.20160126-0ubuntu1
InstallationDate: Installed on 2016-02-13 (204 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: ktp-accounts-kcm
Title: package kde-config-telepathy-accounts 4:15.12.3-0ubuntu1 failed to install/upgrade: trying to overwrite '/usr/share/accounts/services/google-im.service', which is also in package account-plugin-google 0.12+16.04.20160126-0ubuntu1
UpgradeStatus: Upgraded to xenial on 2016-07-31 (35 days ago)