could not import ... (no required module provides package ".../utils/...")

Ok I'm officially stumped. I've reviewed these 4 similar questions/answers:

https://stackoverflow.com/questions/70842657/go-no-required-module-provides-package-mux-error

https://stackoverflow.com/questions/65716220/could-not-import-no-required-module-provides-package

https://stackoverflow.com/questions/60680470/could-not-import-local-modules-in-golang

https://stackoverflow.com/questions/58518588/vscode-could-not-import-golang-package

...and they all basically repeat the same answer of running go mod init <name> and go mod tidy which I've done numerous times, same issue persists.

I do not have this package uploaded to a github repo, it's just stored locally on my Windows machine. I have run the commands:

go mod init go_backtest

go mod tidy

...and I am still seeing these all over the place:

what's interesting is there is NOT a red underline under the "go_backtest/strategies" line:

This is what the go.mod file looks like:

module go_backtest

go 1.19

I'm still a newbie to golang so be kind, but how can I get this thing to "compile" and run (and make those red underlines go away!)

The files in the utils directory should belong to the same package utils. Those files should have the line package utils at the very beginning.

And the import statement is used to import a package instead of a file. So replace

"go_backtest/utils/dataFuncs"
"go_backtest/utils/ga"

with

"go_backtest/utils"