GOPATH is empty (Gogland IDE)

gogoland

I am pretty new to Go and Gogland. I just downloaded 'go1.8.3.windows-amd64.msi', installed it in C Drive and then started writing my programs in a notepad and then finally running it from a terminal.

I am facing some issues with Gogland. I have intelliJ IDEA Ultimate But I have been asked to use Gogland. I do not know whether this is the correct decision.
You may want to advise me on the same.
I just created a new project, gave it a name and added a go file into it which has simple helloworld code.
But it shows me an error "GOPATH is empty".

As you could see the message at the top, just above the line package myfirstproject.

How to resolve it? Do I need to do something with environment variables. The PATH environment variable is already set to 'C:\Go\bin'.

When I click on the error message it asks me to configure GOPATH.

Best Answer

As of Go 1.8, the default GOPATH value is /go.

GOPATH is where your source code will live. You can either use the default one or use a custom one, for example, I use D:\go.

The IDE has not detected the GOPATH because none was set. When you download Go you are also presented with the installation instructions, please have a look at that as well.

Related Solutions

Go – What should be the values of GOPATH and GOROOT

GOPATH is discussed in the cmd/go documentation:

The GOPATH environment variable lists places to look for Go code. On Unix, the value is a colon-separated string. On Windows, the value is a semicolon-separated string. On Plan 9, the value is a list.

GOPATH must be set to get, build and install packages outside the standard Go tree.

GOROOT is discussed in the installation instructions:

The Go binary distributions assume they will be installed in /usr/local/go (or c:\Go under Windows), but it is possible to install the Go tools to a different location. In this case you must set the GOROOT environment variable to point to the directory in which it was installed.

For example, if you installed Go to your home directory you should add the following commands to $HOME/.profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
Note: GOROOT must be set only when installing to a custom location.

(updated version of Chris Bunch's answer.)

Windows – GOPATH value setting

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.

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

Best Answer

Related Solutions

Go – What should be the values of GOPATH and GOROOT

Windows – GOPATH value setting

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