[Bug 55990] Could not calculate the upgrade

[Alastair M Graham]

Public bug reported:

Hi there, sorry me again. I'm trying to upgrade my other system and have
received the attached error.

I've attached a screen shot and the /var/log/dist-upgrade.log

Regards, Alastair

** Affects: yelp (Ubuntu)
     Importance: Untriaged
         Status: Unconfirmed

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Could not calculate the upgrade
https://launchpad.net/bugs/55990