package libunity-scopes1.0 (not installed) failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1

[Shawn Barratt]

upgrade from 15.04 to 15.10

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: libunity-scopes1.0 (not installed)
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
Date: Fri Oct 23 08:30:05 2015
DuplicateSignature: package:libunity-scopes1.0:(not installed):subprocess installed pre-removal script returned error exit status 1
ErrorMessage: subprocess installed pre-removal script returned error exit status 1
InstallationDate: Installed on 2014-12-30 (297 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5
 apt 1.0.10.2ubuntu1
SourcePackage: unity-scopes-api
Title: package libunity-scopes1.0 (not installed) failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1
UpgradeStatus: Upgraded to wily on 2015-10-23 (0 days ago)