Same here:
Can't install 'ubuntu-desktop'
It was impossible to install a required package. Please report this as a bug
Could not calculate the upgrade
A unresolvable problem occurred while calculating the upgrade.
Please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bugreport.
Same here:
Can't install 'ubuntu-desktop'
It was impossible to install a required package. Please report this as a bug
Could not calculate the upgrade
A unresolvable problem occurred while calculating the upgrade.
Please report this bug against the 'update-manager' package and include the files in /var/log/ dist-upgrade/ in the bugreport.