How make git repo install with `go install` command and retract mistakenly published pkg.go.dev package?

I have a small package which has main.go and go.mod in root directory and couple of files in src/*, files inside src contain package name on all files:

Here is the contents of main.go:

package main

import (
	package_name "github.com/user/package/src"
)

func main() {
	package_name.Run()
}

Here is go.mod:

module github.com/user/package

go 1.20

I am trying to mimic structure of https://github.com/junegunn/fzf. But in my case whenever I try to do go install github.com/user/package@latest I get an error package github.com/user/package is not a main package same does not happen with fzf can you please explain my why?

According to https://pkg.go.dev/github.com/asolopovas/dsync?tab=versions, you have published v1.0.0 before. Run go install with the -x option confirms that:

$ go clean -modcache
$ go install -x github.com/asolopovas/dsync@latest
# get https://proxy.golang.org/github.com/@v/list
# get https://proxy.golang.org/github.com/asolopovas/@v/list
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/list
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/list: 200 OK (1.202s)
# get https://proxy.golang.org/github.com/@v/list: 404 Not Found (1.202s)
# get https://proxy.golang.org/github.com/asolopovas/@v/list: 404 Not Found (1.202s)
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/v1.0.0.info
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/v1.0.0.info: 200 OK (0.293s)
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/v1.0.0.mod
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/v1.0.0.mod: 200 OK (0.617s)
# get https://proxy.golang.org/sumdb/sum.golang.org/supported
# get https://proxy.golang.org/sumdb/sum.golang.org/supported: 404 Not Found (0.304s)
# <output truncated>
go: downloading github.com/asolopovas/dsync v1.0.0
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/v1.0.0.zip
# get https://proxy.golang.org/github.com/asolopovas/dsync/@v/v1.0.0.zip: 200 OK (0.324s)
package github.com/asolopovas/dsync is not a main package

Download https://proxy.golang.org/github.com/asolopovas/dsync/@v/v1.0.0.zip and check its content. Indeed the package github.com/asolopovas/dsync at v1.0.0 is not a main package.

Now you have updated the master branch to turn it into a main package, tag a new version (such as v1.1.0) and try again. Hopefully go install github.com/asolopovas/dsync@latest should work now.

I fixed my problem by reading docs, adding retraction attribute to my go.mod file, and creating new tag v1.0.1 (tags like v1.1 did not work, so i had to choose v1.0.1 format) as was suggested by Zeke Lu, then I visited https://pkg.go.dev/github.com/username/package@v1.0.1 and clicked request and overnight I have a new version of the package which works with go install command.

go.mod

module github.com/asolopovas/dsync

go 1.20

retract (
    v1.0.0 // Published accidentally.
    v0.1.0 // Published accidentally.
)