When I open sortware update application I am not seeing any notification about a new release. So I tried to manually upgrade by running
sudo apt-get update sudo do-release-upgrade
and I am getting this error:
Checking for a new Ubuntu release Traceback (most recent call last): File "/usr/bin/do-release-upgrade", line 145, in <module> fetcher.run_options += ["--mode=%s" % options.mode, AttributeError: type object 'DistUpgradeFetcherCore' has no attribute 'run_options'
How do I upgrade to 13.04?