is a program, not an importable package

Good morning I’m new to goland, when I want to run “go run.” I get “is a program, not an importable package” does anyone know how to solve this problem?
I already installed GO in VSC
I already put “_” and “.” before import into main.go

Your module has the very same name as the module of the course creator, therefore your import tries to import itself, rather then the package provided on the GitHub repository.

Also please copy and paste code and errors rather than screenshots. It is really hard to copy and paste from them, and many just do not even look at them.