NVidiaScreenlet.py crashed with ValueError in getGpuRam(): invalid literal for int() with base 10: "ERROR: Error resolving target specification '' (No targets match target\n specification), specified in query 'VideoRam'.\n"

[Fiorini Daniele]

i tried to add nvidia addon of screenlets manager

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: screenlets-pack-all 0.1.6-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-19.39-generic 3.13.6
Uname: Linux 3.13.0-19-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Mar 22 23:22:40 2014
ExecutablePath: /usr/share/screenlets/screenlets-pack-all/NVidia/NVidiaScreenlet.py
InstallationDate: Installed on 2013-09-13 (190 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: python -u /usr/share/screenlets/screenlets-pack-all/NVidia/NVidiaScreenlet.py
PythonArgs: ['/usr/share/screenlets/screenlets-pack-all/NVidia/NVidiaScreenlet.py']
SourcePackage: indiv-screenlets
Title: NVidiaScreenlet.py crashed with ValueError in getGpuRam(): invalid literal for int() with base 10: "ERROR: Error resolving target specification '' (No targets match target\n specification), specified in query 'VideoRam'.\n"
UpgradeStatus: Upgraded to trusty on 2014-03-16 (6 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo