x/tools/cmd/goimports:

[tomerf8]

Please answer these questions before submitting your issue. Thanks!

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

go version go1.6.2 (appengine-1.9.40) darwin/amd64

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

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/tomerf/go"
GORACE=""
GOROOT="/usr/local/go_appengine/goroot"
GOTOOLDIR="/usr/local/go_appengine/goroot/pkg/tool/darwin_amd64"
GO15VENDOREXPERIMENT="1"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fno-common"
CXX="clang++"
CGO_ENABLED="1"

What did you do?

go get -u golang.org/x/tools/cmd/goimports

What did you expect to see?

goimports installed

What did you see instead?

# golang.org/x/tools/imports
src/golang.org/x/tools/imports/fastwalk_unix.go:23: readDir redeclared in this block
        previous declaration at src/golang.org/x/tools/imports/fastwalk_portable.go:18

[bradfitz]

This is almost certainly because you're using the AppEngine version of Go to fetch a binary, and it's making assumptions about dependent packages that you want to run them on App Engine.

Use the normal Go binary to install goimports.

/cc @okdave @broady (Is there anything to do here?)