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I'm on maverick, and want to upgrade to natty. I went to update manager and clicked upgrade. while it's calculating upgrade an error appeared:

an error appear

What should I do now?

Edit:

I also try upgrade from Ubuntu alternate CD, but getting same error!

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closed as off-topic by Braiam, Eric Carvalho, belacqua, BuZZ-dEE, Vojtech Trefny May 24 '14 at 19:48

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  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – Braiam, Eric Carvalho, belacqua, BuZZ-dEE, Vojtech Trefny
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up vote 3 down vote accepted

I found [this bug] ( https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/146536) on Bugzilla

A work-around:

  • Run synaptic
  • Refresh to pull package lists
  • Mark all upgrades
  • Search for any packages you know got removed by an apt-get dist-upgrade if you ran it. For me, I told it to reinstall pidgin, AccessGrid, and ubuntu-desktop (which installed two other trivial packages).
  • Apply
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thanks Rinzwind, I used upgrade to natty from live CD :) – Behzadsh May 3 '11 at 12:26

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