dongliugu8843
2014-02-02 12:44
浏览 309
已采纳

前进:找不到软件包“ fmt”错误

I'm trying to follow a simple Hello, World application in go:

package main

import (
    "fmt"
)

func main() {
    fmt.Println("Hello World!")
}

But when I build and run it, I get the following error:

main.go:5:2: cannot find package "fmt" in any of:
    /home/user/go/src/pkg/fmt (from $GOROOT)
    /home/user/gocode/src/fmt (from $GOPATH)
package test_program
    imports runtime: cannot find package "runtime" in any of:
    /home/user/go/src/pkg/runtime (from $GOROOT)
    /home/user/gocode/src/runtime (from $GOPATH)

Here is the ouput of go env:

GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/user/gocode"
GORACE=""
GOROOT="/home/user/go"
GOTOOLDIR="/home/user/go/pkg/tool/linux_amd64"
CC="gcc"
GOGCCFLAGS="-g -O2 -fPIC -m64 -pthread"
CGO_ENABLED="1"

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我正在尝试遵循一个简单的 Hello,World 应用程序:

 包main 
 
import(
“ fmt” 
)
 
func main(){
 fmt.Println(“ H​​ello World!”)
}  
   
 
 

但是当我构建并运行它时,出现以下错误:

  main.go:5  :2:在以下任何位置都找不到软件包“ fmt”:
 / home / user / go / src / pkg / fmt(来自$ GOROOT)
 / home / user / gocode / src / fmt(来自$ GOPATH)\  npackage test_program 
导入运行时:在以下任何位置都找不到包“运行时”:
 / home / user / go / src / pkg / runtime(来自$ GOROOT)
 / home / user / gocode / src / runtime(来自 $ GOPATH)
   
 
 

这是 go env 的输出:

  GOARCH  = “AMD64” 
GOBIN = “” 
GOCHAR = “6” 
GOEXE = “” 
GOHOSTARCH = “AMD64” 
GOHOSTOS = “linux的” 
GOOS = “linux的” 
GOPATH = “/ home / user中/ gocode” \  nGORACE =“” 
GOROOT =“ / home / user / go” 
GOTOOLDIR =“ / home / user / go / pkg / tool / linux_amd64” 
CC =“ gcc” 
GOGCCFLAGS =“-g -O2 -fPIC -m64  -pthread“
  CGO_ENABLED =“ 1” 
   
 
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2条回答 默认 最新

  • dsgs8208 2014-02-02 13:11
    已采纳

    Unset GOROOT - the go tools know where they are supposed to be and you rarely need to set it.

    You've set it to /home/user/go and unless you build go in there that is unlikely to be the right place to find the fmt package.

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  • duanjing3656 2014-02-02 13:00

    Don't use apt-get for installing , just download the binaries and extract them to your home (or any) directory.

    To get the go tool available in your terminal, you have to add the export PATH=$PATH:$GOROOT/bin line to your ~/.bashrc.

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