error with "package main" flagging red in the main.go folder

Question

I have written a main.go program and declared the package at the beginning of the code but it flagging red as shown below:

When I hover on the package, it displays the following:

gopls requires a module at the root of your workspace.
You can work with multiple modules by opening each one as a workspace folder.
Improvements to this workflow will be coming soon, and you can learn more here:
https://github.com/golang/tools/blob/master/gopls/doc/workspace.md.

I'd require help on how I can pass this error. Thanks a lot.

Answer 1

I'm getting started with golang, so I'm not sure if this would help you.

This error was showing up here in VS Code, and to solve it I needed to clone an empty github repo into a new folder, to add the main.go file later.

I was able to add, commit and push changes. The lint error is now gone.

In my case, .git folder is located upwards, and not alongside main.go:

\my-app
  |
  |__ \backend
      |__ go.mod
      |__ main.go
  |__ \frontend
  |__ \.git

Within the backend folder the go.mod was generated with

go mod init github.com/<your-username>/my-app

It seems GitHub changed the default branch from master to main. If you use github, check if your in the correct branch, which may be main by default.