title: Use Go lang with MSYS2
body: <p>I want to use Go, the programming language on Windows using MSYS2.<br>
  Which package should I use and how to avoid errors like:</p>
  
  <pre><code>package bufio: unrecognized import path "bufio"
  package bytes: unrecognized import path "bytes"
  package crypto: unrecognized import path "crypto"
  package crypto/des: unrecognized import path "crypto/des"
  package crypto/hmac: unrecognized import path "crypto/hmac"
  package crypto/md5: unrecognized import path "crypto/md5"
  package crypto/rand: unrecognized import path "crypto/rand"
  package crypto/rc4: unrecognized import path "crypto/rc4"
  package crypto/sha256: unrecognized import path "crypto/sha256"
  package crypto/tls: unrecognized import path "crypto/tls"
  package crypto/x509: unrecognized import path "crypto/x509"
  package encoding/base64: unrecognized import path "encoding/base64"
  package encoding/binary: unrecognized import path "encoding/binary"
  package encoding/hex: unrecognized import path "encoding/hex"
  package encoding/json: unrecognized import path "encoding/json"
  package encoding/xml: unrecognized import path "encoding/xml"
  package errors: unrecognized import path "errors"
  package fmt: unrecognized import path "fmt"
  package io: unrecognized import path "io"
  package os: unrecognized import path "os"
  package path/filepath: unrecognized import path "path/filepath"
  package runtime: unrecognized import path "runtime"
  package strconv: unrecognized import path "strconv"
  package strings: unrecognized import path "strings"
  package sync: unrecognized import path "sync"
  package time: unrecognized import path "time"
  package os/exec: unrecognized import path "os/exec"
  package syscall: unrecognized import path "syscall"
  package io/ioutil: unrecognized import path "io/ioutil"
  package regexp: unrecognized import path "regexp"
  package hash: unrecognized import path "hash"
  package net: unrecognized import path "net"
  package sync/atomic: unrecognized import path "sync/atomic"
  package unsafe: unrecognized import path "unsafe"
  package hash/crc32: unrecognized import path "hash/crc32"
  package reflect: unrecognized import path "reflect"
  package unicode/utf16: unrecognized import path "unicode/utf16"
  package unicode: unrecognized import path "unicode"
  package unicode/utf8: unrecognized import path "unicode/utf8"
  package math: unrecognized import path "math"
  package net/http: unrecognized import path "net/http"
  package net/http/httputil: unrecognized import path "net/http/httputil"
  package net/url: unrecognized import path "net/url"
  package path: unrecognized import path "path"
  package sort: unrecognized import path "sort"
  package text/template: unrecognized import path "text/template"
  package log: unrecognized import path "log"
  package os/signal: unrecognized import path "os/signal"
  </code></pre>