Go: errors in go standard library runtime

[dayadev]

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

go version go1.13.5 linux/amd64

Does this issue reproduce with the latest release?

Yes

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

go env Output

GO111MODULE=""

GOARCH="amd64"

GOBIN=""

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

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

GOEXE=""

GOFLAGS=""

GOHOSTARCH="amd64"

GOHOSTOS="linux"

GONOPROXY=""

GONOSUMDB=""

GOOS="linux"

GOPATH="/home/xxx/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="/home/xxx/qqq/go.mod"

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 -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build840764954=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Tried to build my code which is working in go version 1.13.4

What did you expect to see?

Expected my code to build successfully

What did you see instead?

# runtime
/usr/local/go/src/runtime/map.go:65:2: bucketCntBits redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:64:18
/usr/local/go/src/runtime/map.go:66:2: bucketCnt redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:65:23
/usr/local/go/src/runtime/map.go:77:2: maxKeySize redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:74:17
/usr/local/go/src/runtime/map.go:83:2: dataOffset redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:83:4
/usr/local/go/src/runtime/map.go:94:2: evacuatedX redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:91:19
/usr/local/go/src/runtime/map.go:95:2: evacuatedY redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:92:19
/usr/local/go/src/runtime/map.go:96:2: evacuatedEmpty redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:90:19
/usr/local/go/src/runtime/map.go:97:2: minTopHash redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:93:19
/usr/local/go/src/runtime/map.go:100:2: iterator redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:96:16
/usr/local/go/src/runtime/map.go:101:2: oldIterator redeclared in this block
    previous declaration at /usr/local/go/src/runtime/hashmap.go:97:16
/usr/local/go/src/runtime/map.go:101:2: too many errors

[bmhatfield]

Did you unzip a new go version over a directory containing an old version, by any chance? I believe you must clear out the previous version before installing the new version (or have unique paths per version, etc)

[ALTree]

Yeah this happens when you unzip a new version over the old one without deleting the old folder.

Please rm -rf /usr/local/go and try to reinstall Go from a clean state. Closing here, but feel free to comment if the error persists.