doing an "aptitude upgrade" on a new installation of xubuntu 13.10

[Stevan Kew Ell]

This resulted:
INFO:softwarecenter.db.pkginfo_impl.aptcache:aptcache.open()
WARNING:softwarecenter.db.update:The file: '/usr/share/app-install/desktop/sonic-visualiser:x-sonicvisualiser-layer.desktop' could not be read correctly. The application associated with this file will not be included in the software catalog. Please consider raising a bug report for this issue with the maintainer of that application

WARNING:softwarecenter.db.update:The file: '/usr/share/app-install/desktop/sonic-visualiser:x-sonicvisualiser.desktop' could not be read correctly. The application associated with this file will not be included in the software catalog. Please consider raising a bug report for this issue with the maintainer of that application

(The repeat was verbatin)
 After this message the message "Software catalog update was successful." appeared.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: software-center 13.10-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelModules: fglrx wl
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
Date: Sun Oct 13 20:31:37 2013
InstallationDate: Installed on 2013-10-11 (2 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: software-center
UpgradeStatus: No upgrade log present (probably fresh install)