I can confirm the 0.5.7-0ubuntu2.1 package fixes the problem, running the pk-upgrade-distro script successfully starts the upgrader (having already changed DistUpgradeFetcherKDE.py to use devel release updates, which won't be needed after maverick release of course).
I can confirm the 0.5.7-0ubuntu2.1 package fixes the problem, running the pk-upgrade-distro script successfully starts the upgrader (having already changed DistUpgradeFetc herKDE. py to use devel release updates, which won't be needed after maverick release of course).