Go Project子目录(无需模块提供包)

我尝试使用子目录(使用 internals ). 目录结构如下:

根目录: /Users/xyz/code/ppPrinter

.
├── go.mod
├── internal
│   ├── backends
│   │   └── bar.go
│   └── commands
└── main.go

Go mod:

module bitbucket.org/foo/ppprint.git

go 1.22.5

main.go:

package main

import (
    "fmt"

    be "bitbucket.org/foo/ppPrint.git/internal/backends"
)

// Hello returns a greeting for the named person.
func main() {
    // Return a greeting that embeds the name in a message.
    foo := be.Hello("Gladys")
    message := fmt.Sprintf("Hi, %v. Welcome!", name)
    return message
}

bar.go:

package backends

import "fmt"

// Hello returns a greeting for the named person.
func Hello(name string) string {
    // Return a greeting that embeds the name in a message.
    message := fmt.Sprintf("Hi, %v. Welcome!", name)
    return message
}

在我的系统中,默认情况下设置了no GO*env变量: env | grep GO 什么也不返回。

正在运行main.go:

cd $HOME/code/ppPrinter/ && go run main.go
main.go:6:2: no required module provides package bitbucket.org/foo/ppPrint.git/internal/backends; to add it:
    go get bitbucket.org/foo/ppPrint.git/internal/backends

将GOPATH设置为时出现相同错误 $HOME/code/ppPrinter .
我缺少什么(我只是想能够在子目录中构建我的本地项目)?