我试图像这样安装doozer:

$ goinstall github.com/ha/doozer

我得到这些错误。

goinstall: os: go/build: package could not be found locally goinstall: fmt: go/build: package could not be found locally goinstall: io: go/build: package could not be found locally goinstall: reflect: go/build: package could not be found locally goinstall: math: go/build: package could not be found locally goinstall: rand: go/build: package could not be found locally goinstall: url: go/build: package could not be found locally goinstall: net: go/build: package could not be found locally goinstall: sync: go/build: package could not be found locally goinstall: runtime: go/build: package could not be found locally goinstall: strings: go/build: package could not be found locally goinstall: sort: go/build: package could not be found locally goinstall: strconv: go/build: package could not be found locally goinstall: bytes: go/build: package could not be found locally goinstall: log: go/build: package could not be found locally goinstall: encoding/binary: go/build: package could not be found locally


当前回答

具体到GOROOT, Go 1.9会自动将其设置到其安装路径。 即使你安装了多个Go,调用1.9。xone将GOROOT设置为/path/到/go/1.9(之前,如果没有设置,它假设默认路径为/usr/local/go或c:\ go)。

参见CL Go Review 53370:

The go tool will now use the path from which it was invoked to attempt to locate the root of the Go install tree. This means that if the entire Go installation is moved to a new location, the go tool should continue to work as usual. This may be overriden by setting GOROOT in the environment, which should only be done in unusual circumstances. Note that this does not affect the result of the runtime.GOROOT() function, which will continue to report the original installation location; this may be fixed in later releases.

其他回答

如上所述:

GOPATH环境变量指定您的 工作区。

对于Windows,这对我来说是有效的(在Ms-dos窗口中):

set GOPATH=D:\my_folder_for_go_code\

这将创建一个Ms-dos识别的GOPATH变量,使用如下:

cd %GOPATH%

我不得不追加

export GOROOT=/usr/local/Cellar/go/1.10.1/libexec

致我的~/。在Mac OS X上使用bash_profile

截至2020年和Go版本1.13+,在Windows中更新GOPATH的最佳方法是在命令提示符中输入:

setx GOPATH C:\mynewgopath

以下是我的简单设置:

directory for go related things: ~/programming/go
directory for go compiler/tools: ~/programming/go/go-1.4
directory for go software      : ~/programming/go/packages

GOROOT、GOPATH、PATH的设置如下:

export GOROOT=/home/user/programming/go/go-1.4
export GOPATH=/home/user/programming/go/packages
export PATH=$PATH:$GOROOT/bin:$GOPATH/bin

所以,简而言之:

GOROOT是编译器/工具,来自go安装。 GOPATH是为你自己的项目/第三方库(下载“go get”)。

答案很多,但没有实质内容,就像机器人对系统中的内容进行剪切和粘贴。不需要将GOROOT设置为环境变量。但是,有必要设置GOPATH环境变量,如果没有设置,则默认为${HOME}/go/ folder。

您必须注意的是PATH环境变量,因为这个变量可以改变您的go版本。不是GOROOT !忘记GOROOT。

现在,如果你切换或更改到一个新的go版本,你下载的包将使用默认的$HOME/go文件夹,它将与你之前的go版本混合。这可不太好。

因此,这就是需要定义GOPATH的地方,以便隔离新go版本的下载包。

总之,忘掉GOROOT吧。多想想GOPATH。