Go sets a workspace to open multiple projects

When vscode uses go, if it is not running under gopath, it may appear

Error message "go: go.mod file not found in current directory or any parent directory; see 'go help modules'"

or

"Error loading workspace: You are outside of a module and outside of $GOPATH/src. If you are using modules, please 
open your editor to a directory in your module. If you believe this warning is incorrect, please file an issue:
https://github.com/golang/go/issues/new."

It won't have any effect, but it looks annoying.

In earlier versions (go 1, 17 and earlier), you can setting.jsonadd

"gopls": {
    "experimentalWorkspaceModule": true,
}

If it is a version after 1.18, you can usego work

At the root of the workspace run

go work init
go work use [floder-name] 

For example, my directory is structured like this. just run

go work use gin1  // Or go work use .\gin1\

If there are multiple folders under the directory, you can use

go work use -r [floder-name] 

To traverse all folders in the directory