Error: Installation could not be started: apt-get can't resolve selected packages.

[Generic_User]

Hello, I'm currently using Ubuntu and experiencing an error when trying to upgrading to the new control panel version 8.1.0.

The error in the subject line is the exact error I get whenever trying to run the upgrade.

"Error: Installation could not be started: apt-get can't resolve selected packages."

I'm currently running:

LSB Version: n/a
Distributor ID: Ubuntu
Description: Ubuntu (The Breezy Badger Release)
Release: 5.10
Codename: breezy

Any help or guidance in the right direction would be greatly apprecated.

I thank you for your time.