could not calculate the upgrade

(process:2727): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
Error: No running window found

(process:2731): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

(firefox:2731): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised

(firefox:2731): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised

(firefox:2731): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::display after class was initialised

(firefox:2731): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::default-icon after class was initialised

Description: Ubuntu 13.10
Release: 13.10

N: Unable to locate package pkgname

i expected to begin the upgrade procedure to v. 14.04

what happened instead is the could not calculate the upgrade message.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: ubuntu-release-upgrader-core 1:0.205.6
ProcVersionSignature: Ubuntu 3.11.0-26.21-lowlatency 3.11.10.12
Uname: Linux 3.11.0-26-lowlatency i686
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: i386
CrashDB: ubuntu
Date: Thu Jul 17 11:16:36 2014
InstallationDate: Installed on 2014-01-02 (196 days ago)
InstallationMedia: Ubuntu-Studio 13.10 "Saucy Salamander" - Release i386 (20131016.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to saucy on 2014-07-17 (0 days ago)
VarLogDistupgradeTermlog: