I get this error message when trying to install emacs.
I have run upgrade and update multiple times. The instructions here and here come up when searching my error, but are either irrelevant or do not work. If I try 27 or 28, the error is "unable to locate package", which is even worse.
OS: Windows 10
Ubuntu version: 20.04.1
I've tried writing just "emacs" before, but this gives me the minimalistic version of emacs:

