I am new using ubuntu 18.04 and run into problem when doing daily upgrade.
Here is what I got when I ran: sudo apt upgrade
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
linux-image-4.15.0-111-generic : Depends: linux-modules-4.15.0-111-generic but it is not going to be installed
E: Broken packages
Thank you in advance for help
