[7.10 to 8.04 beta] Could not calculate the upgrade

[Pratul Kalia]

Binary package hint: update-manager

Running 7.10, upgrading to 8.04 beta. Upgrade stops midway and generated the following error...

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Could not calculate the upgrade

A unresolvable problem occurred while calculating the upgrade.

 This can be caused by:
 * Upgrading to a pre-release version of Ubuntu
 * Running the current pre-release version of Ubuntu
 * Unofficial software packages not provided by Ubuntu

If none of this applies, then please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bugreport.
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Including files in /var/log/dist-upgrade as a tarball in the attachments. Files contained are
- apt.log
- main.log
- term.log

[Topher (hunt-topher)]

Is this a duplicate of Bug #157763?

[Pratul Kalia (lut4rp)]

No I dont think so. Checking the apt.log, I found it breaks due to ubuntustudio-default-settings package. I will try upgrading after removing this package (as it is optional)

[KatieQuarles (quarles-katie)]

I'm getting the same message on my vaio vgn-s360, but get different errors in the apt.log

any ideas?

[KatieQuarles (quarles-katie)]

the problem seems to have fixed itself. maybe it was a questionable internet connection.

[Nick Ellery (nick.ellery)]

Pratul, does this error still take place when upgrading to the stable version of Hardy?

[Pratul Kalia (lut4rp)]

No, the bug was solved. Actually, it occurs if ubuntu-desktop package is not installed from synaptics. The package was removed in my case as I had used the ubuntu-studio-sounds package. Once, the ubuntu-desktop package is re-selected, the installer gives no error.

[doubledoux (tagudat)]

Hi Pratul,
Still get the same error - none of the recommendation/fixes worked in my case.
Thomas