Gopath环境错误

Question

I'm using Visual Studio code to write some go code. Everything was working fine yesterday, but now I can't run the debugger or build in VS-Code.

I am on Windows 10, and I use Powershell as my terminal of choice.

I get the following error:

go: GOPATH entry is relative; must be absolute path: "/Users/efronlicht/go".
For more details see: 'go help gopath'
exit status 2
Process exiting with code: 1

This is a VS-CODE specific error, because I can build go source files with go build through the terminal as usual.

Here are the results of go env:

set GOARCH=amd64
set GOBIN=
set GOEXE=.exe
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows
set GOPATH=C:\work\go
set GORACE=
set GOROOT=C:\Go
set GOTOOLDIR=C:\Go\pkg\tool\windows_amd64
set GCCGO=gccgo
set CC=gcc
set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0
set CXX=g++
set CGO_ENABLED=1
set PKG_CONFIG=pkg-config
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2

As you can see, my GOPATH is an absolute path, not a relative one.

Answer 1

I use VSCode 1.13.1 on Windows 10, and I launch or debug without any issue.

Launching involves in your workspace a ${workspaceroot}/.vscode/tasks.json file.
To be sure of the GOPATH value, mine includes:

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "0.1.0",
    "command": "build",
    "isShellCommand": true,
    "showOutput": "always",
    "tasks": [
        {
            "options": {
                "env": {
                    "GOROOT": "D:/prgs/go/latest",
                    "GOPATH": "${workspaceRoot}"
                }
            },
            "echoCommand": false,
            "taskName": "install",
            "isBuildCommand": true
        },

You can replace "${workspaceRoot}" by C:/work/go in your case.
That way, a <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>B</kbd> triggers a compilation+installation (go install)

And the debugger involves:

• having a dlv.exe in the %PATH%
• a ${workspaceroot}/.vscode/launch.json file

Here is mine

{
    "version": "0.2.0",
    "configurations": [
        {
            "stopOnEntry": false,
            "cwd": "${workspaceRoot}",
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "remotePath": "",
            "port": 2345,
            "host": "127.0.0.1",
            "program": "${fileDirname}",
            "env": {
                "GOPATH": "${workspaceRoot}"
            },
            "args": [],
            "showLog": true
        }
    ]
}

Again you can replace "${workspaceRoot}" by C:/work/go in your case (both in GOPATH and cwd).

Note that I specificy GOPATH as well as cwd (current working directory) I open my file relative from the workspace root (that way, the breakpoints are recognized). A simple <kbd>F5</kbd> from main.go does run delve successfully (on Windows!)

With that, I can launch VSCode from a cmd Windows shell which has no GOROOT or GOPATH set, and it still works. (because my local user settings do include "go.goroot": "D:/prgs/go/latest")