Thanks for you report. I'm closing this report due to your last comment.
Don't hesitate to submit any new bug.
** Changed in: update-manager (Ubuntu)
Status: New => Invalid
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error on starting update manager (on 10.10 alpha 1)
https://bugs.launchpad.net/bugs/593123
You received this bug
nevermind, fixed by cleaning up the /etc/apt/sources.list.d/ubuntu-
tweak-testing-ppa-maverick.list
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error on starting update manager (on 10.10 alpha 1)
https://bugs.launchpad.net/bugs/593123
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Bugs, which is subscribed to Ubun