If you are getting this error NETSDK1005 when trying to scaffold the webpages that says “Assets file [..] doesn’t have a target for ‘net50′” then please check if you have updated dotnet aspnet-codegenerator. Documentation is behind this link.
Update: I discussed it with the teacher and TAs and got to the conclusion that this is some kind on Linux specific aspnet-codegenerator issue. As it is used mainly for intoductory/demo purposes at this point then I simply proceed without demo content as there is no actual need for this.
Few useful commands for myself as a footnote:
dotnet tool list -g (List your dotnet tools, useful)