Golang cmd/go: go mod init go gets error

Go version

go version go1.24.5 windows/amd64

Output of go env in your module/workspace:

set AR=ar
set CC=gcc
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_ENABLED=0
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set CXX=g++
set GCCGO=gccgo
set GO111MODULE=
set GOAMD64=v1
set GOARCH=amd64
set GOAUTH=netrc
set GOBIN=
set GOCACHE=C:\Users\***\AppData\Local\go-build
set GOCACHEPROG=
set GODEBUG=
set GOENV=C:\Users\***\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFIPS140=off
set GOFLAGS=
set GOGCCFLAGS=-m64 -fno-caret-diagnostics -Qunused-arguments -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=C:\Users\***\AppData\Local\Temp\go-build548994352=/tmp/go-build -gno-record-gcc-switches
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMOD=NUL
set GOMODCACHE=C:\Users\***\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\***\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=C:\Program Files\Go
set GOSUMDB=sum.golang.org
set GOTELEMETRY=local
set GOTELEMETRYDIR=C:\Users\***\AppData\Roaming\go\telemetry
set GOTMPDIR=
set GOTOOLCHAIN=auto
set GOTOOLDIR=C:\Program Files\Go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.24.5
set GOWORK=
set PKG_CONFIG=pkg-config

What did you do?

PS D:\Desktop\NEW\Go\go> go mod init go

What did you see happen?

go: creating new go.mod: module go
panic: go: internal error: missing go root module

goroutine 1 [running]:
cmd/go/internal/modload.mustHaveGoRoot(...)
        cmd/go/internal/modload/buildlist.go:104
cmd/go/internal/modload.newRequirements(0xc0?, {0xc00010f3a0?, 0x1616c0e?, 0x2?}, 0x20b4bff05a0?)
        cmd/go/internal/modload/buildlist.go:118 +0x6f8
cmd/go/internal/modload.updatePrunedRoots({0x1743560, 0x1bb3560}, 0xc0001b73e0, 0xc000178140, {0x0, 0x0, 0xc00011d100?}, {0x0, 0x0, 0x0}, ...)
        cmd/go/internal/modload/buildlist.go:1236 +0xb68
cmd/go/internal/modload.updateRoots({0x1743560?, 0x1bb3560?}, 0x1738f6a?, 0x6?, {0x0?, 0x1?, 0x16196f1?}, {0x0, 0x0, 0x0}, ...)
        cmd/go/internal/modload/buildlist.go:796 +0xba
cmd/go/internal/modload.CreateModFile({0x1743560, 0x1bb3560}, {0xc000116100, 0x2})
        cmd/go/internal/modload/init.go:1126 +0x7f4
cmd/go/internal/modcmd.runInit({0x1743560?, 0x1bb3560?}, 0xc000159848?, {0xc0001240f0?, 0x1616bc0?, 0x1617a33?})
        cmd/go/internal/modcmd/init.go:48 +0x8c
main.invoke(0x1b5e340, {0xc0001240e0, 0x2, 0x2})
        cmd/go/main.go:341 +0x845
main.main()
        cmd/go/main.go:220 +0xe6b

What did you expect to see?

Maybe create successfully or alert that the name is invalid.