Unable to upgrade to 13.10

[Mike Robinson]

When trying to upgrade from 13.04 to 13.10, I get a bunch of errors like:

Err http://us.archive.ubuntu.com saucy-updates/main Translation-en_US
Err http://us.archive.ubuntu.com saucy-updates/multiverse Translation-en_US
Err http://us.archive.ubuntu.com saucy-updates/restricted Translation-en_US
Err http://us.archive.ubuntu.com saucy-updates/universe Translation-en_US

Then at the end of the output:

Calculating the changes
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu

If none of this applies, then please report this bug using the
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.

Restoring original system state

Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done

It looks like it might be an error with the ubuntu.com website.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubuntu-release-upgrader-core 1:0.192.13
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic i686
NonfreeKernelModules: fglrx wl
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: i386
CrashDB: ubuntu
Date: Thu Oct 17 09:43:07 2013
InstallationDate: Installed on 2013-03-09 (222 days ago)
InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.1)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to raring on 2013-10-17 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.