GOPATH value setting

Question

I\'m install the go with the go1.3.1.windows-amd64.msi, after installation GOROOT is default setting, I found the D:\\Programs\\Go\\bin in the PATH,then I create a GOPATH envi

Answer 1

• GOROOT must reference the folder where you installed GO
• GOPATH must reference an empty folder which will be your workspace (src/pkg/bin for your projects)

Add those two variables in your user environment variables.

A go get github.com/coreos/etcd should:

• download the sources in %GOPATH%/src/github.com/coreos/etcd (src is created for you)
• compile it in %GOPATH%/pkg/windows_amd64 (pkg/ is created for you, windows_amd64 reflects your windows architecture)
• with go install, install it in %GOPATH%/bin (bin/ is also created for you)

Note: with Go 1.8+ (Q2 2017), GOPATH might be set for you by default to (on Windows) %USERPROFILE%/go.
On Linux, it would be $HOME/go: see issue 17262.

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Update 2018, three years later: GOPATH is becoming obsolete with Go 1.11 modules:

mkdir newProject
cd newProject
set GO111MODULE=on
go mod init myproject