Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

cmd/go: go build gets "cannot load http: cannot find module providing package http" #32511

Closed
AaronJan opened this issue Jun 10, 2019 · 1 comment
Closed

Comments

@AaronJan
Copy link

@AaronJan AaronJan commented Jun 10, 2019

What version of Go are you using (go version)?

$ go version
go version go1.12.5 windows/amd64

Does this issue reproduce with the latest release?

Yes, I am using the latest version.

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\Aaron\AppData\Local\go-build
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows
set GOPATH=C:\Users\Aaron\code\go-projects-win;C:\Go;
set GOPROXY=
set GORACE=
set GOROOT=C:\Go
set GOTMPDIR=
set GOTOOLDIR=C:\Go\pkg\tool\windows_amd64
set GCCGO=gccgo
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=C:\Users\Aaron\code\my-blog\go.mod
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=C:\Users\Aaron\AppData\Local\Temp\go-build355843062=/tmp/go-build -gno-record-gcc-switches

What did you do?

I am using Windows and PowerShell.

I created a project at C:\Users\Aaron\code\my-blog\, then:

go mod init my-git-server/golang/my-blog

Here are my files:

main.go (Copied from gin):

package main

import (
    "http"

    "github.com/gin-gonic/gin"
)

var db = make(map[string]string)

func setupRouter() *gin.Engine {
    // Disable Console Color
    // gin.DisableConsoleColor()
    r := gin.Default()

    // Ping test
    r.GET("/ping", func(c *gin.Context) {
        c.String(http.StatusOK, "pong")
    })

    // Get user value
    r.GET("/user/:name", func(c *gin.Context) {
        user := c.Params.ByName("name")
        value, ok := db[user]

        if ok {
            c.JSON(http.StatusOK, gin.H{"user": user, "value": value})
        } else {
            c.JSON(http.StatusOK, gin.H{"user": user, "status": "no value"})
        }
    })

    // Authorized group (uses gin.BasicAuth() middleware)
    // Same than:
    // authorized := r.Group("/")
    // authorized.Use(gin.BasicAuth(gin.Credentials{
    //   "foo": "bar",
    //   "manu": "123",
    //}))
    authorized := r.Group("/", gin.BasicAuth(gin.Accounts{
        "foo": "bar", // user:foo password:bar
        "manu": "123", // user:manu password:123
    }))

    authorized.POST("admin", func(c *gin.Context) {
        user := c.MustGet(gin.AuthUserKey).(string)

        // Parse JSON
        var json struct {
            Value string `json:"value" binding:"required"`
        }

        if c.Bind(&json) == nil {
            db[user] = json.Value
            c.JSON(http.StatusOK, gin.H{"status": "ok"})
        }
    })

    return r
}

func main() {
    r := setupRouter()

    r.Run(":8080")
}

go.mod:

module my-git-server/golang/my-blog

go 1.12

require github.com/gin-gonic/gin v1.4.0

go.sum:

github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/gin-contrib/sse v0.0.0-20190301062529-5545eab6dad3 h1:t8FVkw33L+wilf2QiWkw0UV77qRpcH/JHPKGpKa2E8g=
github.com/gin-contrib/sse v0.0.0-20190301062529-5545eab6dad3/go.mod h1:VJ0WA2NBN22VlZ2dKZQPAPnyWw5XTlK1KymzLKsr59s=
github.com/gin-gonic/gin v1.4.0 h1:3tMoCCfM7ppqsR0ptz/wi1impNpT7/9wQtMZ8lr1mCQ=
github.com/gin-gonic/gin v1.4.0/go.mod h1:OW2EZn3DO8Ln9oIKOvM++LBO+5UPHJJDH72/q/3rZdM=
github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/json-iterator/go v1.1.6 h1:MrUvLMLTMxbqFJ9kzlvat/rYZqZnW3u4wkLzWTaFwKs=
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
github.com/mattn/go-isatty v0.0.7 h1:UvyT9uN+3r7yLEYSlJsbQGdsaB/a0DlgWP3pql6iwOc=
github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/ugorji/go v1.1.4 h1:j4s+tAvLfL3bZyefP2SEWmhBzmuIlH/eqNuPdFPgngw=
github.com/ugorji/go v1.1.4/go.mod h1:uQM

Then when I execute this command in my project folder (Actually this is from VSCode' s Go extension):

> C:\Go\bin\go.exe build -o C:\Users\Aaron\AppData\Local\Temp\vscode-goefkeiw\go-code-check .

But simple go build . gets the same output.

What did you expect to see?

It shouldn't emit any error message (I think).

I searched the internet, GitHub, and read this article, but I still can't find answer for my situation (maybe it's a silly mistake made by myself).

At first, I get this error on Windows WSL, so I reinstall Golang on Windows, but still can't get it working. Am I using this wrong?

What did you see instead?

I get this:

build my-git-server/golang/my-blog: cannot load http: cannot find module providing package http

But when I remove the github.com/gin-gonic/gin import statement (and code), only keep built-in packages, it works fine.

@AaronJan

This comment has been minimized.

Copy link
Author

@AaronJan AaronJan commented Jun 10, 2019

OMG...

Turns out it is my problem, http should be net/http.. I shouldn't overthinking about this.

I'm speechless..

Thanks.

@AaronJan AaronJan closed this Jun 10, 2019
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
1 participant
You can’t perform that action at this time.