Error when using ja3transport with Go v1.13 on M2 Mac: 'found packages tls and main in utls

[pwndside]

When I try to execute this piece of code with go v1.13 in my m2 mac.

package main

import (
    "io/ioutil"
    "net/http"
    "strings"

    "github.com/CUCyber/ja3transport"
)

func CreateTransport() {
    // Create an http.Transport object which can be used as a parameter for http.Client
    tr, _ := ja3transport.NewTransport("771,4866-4865-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,23-65281-10-11-35-16-5-13-18-51-45-43-27-17513,29-23-24,0")
    // Set the .Transport member of any http.Client
    client := &http.Client{Transport: tr}
    // Make request to website using the new client
    resp, _ := client.Post("https://localhost:8787/index.php", "application/json", strings.NewReader("{\"username\":\"admin\"}"))
    // Print the response
    body, _ := ioutil.ReadAll(resp.Body)
    println(string(body))
}
func main() {
    CreateTransport()
}

I receive the following error:

../../../../go/src/github.com/CUCyber/ja3transport/ja3client.go:9:2: found packages tls (alert.go) and main (generate_cert.go) in /Users/aymanboulaichdahhou/go/src/github.com/refraction-networking/utls

I use v1.13 because is the one which the creator of ja3transport recommends for the library.

I tried to execute it with multiple go versions I downloaded the file and used relative paths and absolute ones but nothing worked.