I could solve this problem by inspecting the file /var/log/dist-upgrade/apt.log.
I could see there at the last lines that the culprit for the unmet dependencies was "gcc-4.4". I uninstalled buil-essential and gcc-4.4 and now the error is gone and the upgrade has proceeded normally. I will reinstall when I finish upgrading.
Marking the bug as "invalid", feel free to reopen it if it is really a bug and not something which was misconfigured in my system.
I could solve this problem by inspecting the file /var/log/ dist-upgrade/ apt.log.
I could see there at the last lines that the culprit for the unmet dependencies was "gcc-4.4". I uninstalled buil-essential and gcc-4.4 and now the error is gone and the upgrade has proceeded normally. I will reinstall when I finish upgrading.
Marking the bug as "invalid", feel free to reopen it if it is really a bug and not something which was misconfigured in my system.