x/mobile: gobind failed: exit status 2

[unifyproxy]

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

$ go version
go version go1.12.9 linux/amd64

What version of Gomobile are you using (gomobile version)?

$ gomobile version
gomobile version +c6da959 Fri Aug 30 20:13:51 2019 +0000 (android); androidSDK=/home/jason/Android/Sdk/platforms/android-29

Does this issue reproduce with the latest release?

yes

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

go env Output

$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/jason/.cache/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/jason/go"
GOPROXY=""
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
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-build025736357=/tmp/go-build -gno-record-gcc-switches"

What did you do?

gomobile bind -target android -o v2.aar github.com/v2ray/v2ray-core

What did you expect to see?

nothing (build success)

What did you see instead?

Error

gomobile: /usr/local/go/bin/go build -buildmode=c-shared -o=/tmp/gomobile-work-571427279/android/src/main/jniLibs/armeabi-v7a/libgojni.so gobind failed: exit status 2
# gobind
core_android.c:380:1: error: redefinition of 'Java_core_InboundHandlerConfig_getTag'
core_android.c:306:1: note: previous definition is here
core_android.c:554:1: error: redefinition of 'Java_core_OutboundHandlerConfig_getTag'
core_android.c:480:1: note: previous definition is here
core_android.c:573:1: error: redefinition of 'Java_core_OutboundHandlerConfig_getExpire'
core_android.c:468:1: note: previous definition is here
core_android.c:588:1: error: redefinition of 'Java_core_OutboundHandlerConfig_getComment'
core_android.c:460:1: note: previous definition is here

[katiehockman]

/cc @hyangah