Failed to update message (Zorin 16pro to Zorin 17pro)

[Aravisian]

@mycoma and @Jerome, if you both can please chack your sources:

[How To] address and manager Software Sources

In order to retrieve software packages for your computer, the apt software needs a source that supplies it. This is a security feature as sources are signed and vetted. It also is organizational, as it keeps things well organized and prevents conflicts. A source supplies the route to a Repository. Users can supply sources at will. For example a user might wish to install Wine, so they use curl to retrieve a built script to assign a source or use add-apt-repository to add one. However, this me…

Be sure to look in /etc/apt.sources.list.d and ensure that the Zorin OS repository files are assigned correctly to your build, as well.