Buenos días a todos, disculpen la molestia, me salta este error en el la primera línea "package main" ¿Alguien me puede orientar en cómo solucionarlo por favor?:

gopls was not able to find modules in your workspace. When outside of GOPATH, gopls needs to know which modules you are working on. You can fix this by opening your workspace to a folder inside a Go module, or by using a go.work file to specify multiple modules. See the documentation for more information on setting up your workspace: https://github.com/golang/tools/blob/master/gopls/doc/workspace.md.go list