What version of Go are you using (go version)?

$ go version

go version go1.14 linux/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

$ go env
GO111MODULE=""

GOARCH="amd64"

GOBIN=""

GOCACHE="/home/xrfang/.cache/go-build"

GOENV="/home/xrfang/.config/go/env"

GOEXE=""

GOFLAGS=""

GOHOSTARCH="amd64"

GOHOSTOS="linux"

GOINSECURE=""

GONOPROXY=""

GONOSUMDB=""

GOOS="linux"

GOPATH="/home/xrfang/go"

GOPRIVATE=""

GOPROXY="https://proxy.golang.org,direct"

GOROOT="/usr/local/go"

GOSUMDB="sum.golang.org"

GOTMPDIR=""

GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"

GCCGO="gccgo"

AR="ar"

CC="gcc"

CXX="g++"

CGO_ENABLED="1"

GOMOD=""

CGO_CFLAGS="-g -O2"

CGO_CPPFLAGS=""

CGO_CXXFLAGS="-g -O2"

CGO_FFLAGS="-g -O2"

CGO_LDFLAGS="-g -O2"

PKG_CONFIG="pkg-config"

GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build145582574=/tmp/go-build -gno-record-gcc-switches"

What did you do?

My Go projects usually have the following directory structure:

/

• Makefile
• bin/ //compiled binaries go here
• conf/ //for possible configurations
• docs/
• resources/ //static resources, e.g. images, html / css / js files
• src/ //go source code, including go.mod and go.sum, may have subdirectories

What did you expect to see?

I expect vscode-go to analyze code structrue and assist editing smoothly.

What did you see instead?

It often add warnings about code errors here and there, which are abosolutely correct, (compiles ok), and consistantly shows warning:

You are neither in a module nor in your GOPATH. If you are using modules, please open your editor at the directory containing the go.mod. If you believe this warning is incorrect, please file an issue: https://github.com/golang/go/issues/new.

I would suggest the vscode-go plugin to add an option like go.source.root, which defaults to the project root, but may be changed, such as src in my case, so that the tools can work as expected.