bash 如何修复我的 GOROOT 和 GOPATH 变量以运行 go？
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How do I fix my GOROOT and GOPATH variables to run go?
提问by Bangash
Operating system: Ubuntu 14.04
操作系统：Ubuntu 14.04
lines in the .bashrc (tried both of the following)
.bashrc 中的行（尝试了以下两种方法）
# GoPath (without goroot)
export GOPATH=$HOME/gowork
...
...
# GoPath (with goroot)
export GOROOT=/usr/local/go
export GOPATH=$HOME/gowork
Note: I tried to set the above environment variables, first in .profile and then in .bashrc as suggested by different people in a different way.
注意：我尝试设置上述环境变量，首先在 .profile 中，然后在 .bashrc 中，正如不同人以不同方式建议的那样。
Tried to run the following code
尝试运行以下代码
package main
import "fmt"
func main() {
fmt.Println("Hello World!")
}
Error message in the terminal
终端中的错误信息
go run helloworld.go
helloworld.go:3:8: cannot find package "fmt" in any of:
/usr/local/go/src/pkg/fmt (from $GOROOT)
/home/arif/gowork/src/fmt (from $GOPATH)
package runtime: cannot find package "runtime" in any of:
/usr/local/go/src/pkg/runtime (from $GOROOT)
/home/arif/gowork/src/runtime (from $GOPATH)
edit
编辑
go env output
去 env 输出
GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/arif/gowork"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0"
CXX="g++"
CGO_ENABLED="1"
go version output
去版本输出
go version go1.3.3 linux/amd64
A hint
一个提示
I remember that the tar I installed from was go1.6.linux-amd64.tar.gz, which means the go version 1.6 should be shown but my terminal is outputting 1.3.3.
我记得我安装的 tar 是 go1.6.linux-amd64.tar.gz，这意味着应该显示 go 版本 1.6 但我的终端输出的是 1.3.3。
回答by John Weldon
You should generally never have to set $GOROOTunless you know why you're setting it.
$GOROOT除非您知道为什么要设置，否则您通常不必进行设置。
This assumes a 'normal' installation of Go. If you've moved the go binary around, or deleted pkg or src folders, your mileage may vary.
这假设 Go 的“正常”安装。如果你移动了 go 二进制文件，或者删除了 pkg 或 src 文件夹，你的里程可能会有所不同。
Also, make sure an older version of go is not found in your $PATH before the version you intend to use.
另外，请确保在您打算使用的版本之前在 $PATH 中找不到旧版本的 go。
In this case @Bangash had to delete the old /usr/bin/go and add /usr/local/go/bin to his PATH environment variable.
在这种情况下，@Bangash 必须删除旧的 /usr/bin/go 并将 /usr/local/go/bin 添加到他的 PATH 环境变量中。
Usually people use $GOROOTwhen switching between multiple versions of go.
通常人们在 go 的多个版本之间切换时使用 $GOROOT。
Please read comments as well as chat for the solution.
请阅读评论以及聊天以获取解决方案。
