package nvidia-prime 0.6.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6

Hi,

I had a system crash after an upgrade to 14.10. The problem was in Nvidia driver.
I had to purge all nvidia packages. All are gone successfully except this one - nvidia-prime.
It is most probably already removed, but its service data still remains, and dpkg tries to start/stop/reconfig it before trying to remove/reinstal.

That's all.

Thank you very much for bringing us he great Linux OS like this :)

ProblemType: Package
DistroRelease: Ubuntu 14.10
Package: nvidia-prime 0.6.6
ProcVersionSignature: Ubuntu 3.16.0-11.16-generic 3.16.1
Uname: Linux 3.16.0-11-generic x86_64
ApportVersion: 2.14.7-0ubuntu1
AptOrdering: nvidia-prime: Configure
Architecture: amd64
Date: Mon Sep 1 12:09:09 2014
DpkgTerminalLog:
 Setting up nvidia-prime (0.6.6) ...
 Failed to issue method call: Unit nvidia-prime.service failed to load: No such file or directory.
 invoke-rc.d: initscript nvidia-prime, action "start" failed.
DuplicateSignature: package:nvidia-prime:0.6.6:subprocess installed post-installation script returned error exit status 6
ErrorMessage: subprocess installed post-installation script returned error exit status 6
InstallationDate: Installed on 2013-09-15 (350 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: nvidia-prime
Title: package nvidia-prime 0.6.6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6
UpgradeStatus: Upgraded to utopic on 2014-08-29 (2 days ago)