Go: x/mobile: gomobile +6d0d39b incompatible with NDK 20.0.x

Created on 21 Oct 2019 · 9Comments · Source: golang/go

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

$ go version
gomobile version +6d0d39b Wed Oct 2 17:59:09 2019 +0000 (android); androidSDK=/opt/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

GO111MODULE=""

GOARCH="amd64"

GOBIN=""

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

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

GOEXE=""

GOFLAGS=""

GOHOSTARCH="amd64"

GOHOSTOS="linux"

GONOPROXY=""

GONOSUMDB=""

GOOS="linux"

GOPATH="/opt/go-packages"

GOPRIVATE=""

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

GOROOT="/usr/lib/go"

GOSUMDB="sum.golang.org"

GOTMPDIR=""

GOTOOLDIR="/usr/lib/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-build030033936=/tmp/go-build -gno-record-gcc-switches"

What did you do?

gomobile clean
gomobile init

What did you expect to see?

Should not show following error!!

What did you see instead?

gomobile: No compiler for 386 was found in the NDK (tried /opt/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/i686-linux-android16-clang). Make sure your NDK version is >= r19c. Use `sdkmanager --update` to update it.

gomobile bind
gomobile: No compiler for amd64 was found in the NDK (tried /opt/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/x86_64-linux-android21-clang). Make sure your NDK version is >= r19c. Use `sdkmanager --update` to update it.

Android NDK version

Android NDK r20.0.x

NeedsInvestigation mobile

Source

archanpaul

👍3

Most helpful comment

For those who are facing the incompatibility problem, here is a temporary hack to use NDK r19.2.x :
1. Install NDK r19.2.x in the side of R20.0.x

2. cd $SDK_FOLDER

3. ln -s ndk/19.2.5345600 ndk-bundle
gomobile init should work with this hack!!

You don't need to install r19 ndk: just run
vadym@ubuntu:~/Android/Sdk$ ln -s ndk/21.2.6472646/ ndk-bundle

Thanks

vikulin on 9 Jun 2020

👍3

All 9 comments

For those who are facing the incompatibility problem, here is a temporary hack to use NDK r19.2.x :

Install NDK r19.2.x in the side of R20.0.x
cd $SDK_FOLDER
ln -s ndk/19.2.5345600 ndk-bundle

gomobile init should work with this hack!!

archanpaul on 21 Oct 2019

❤1

CC @hyangah @steeve

bcmills on 21 Oct 2019

Not sure about that one, sorry. We are running gobind inside bazel, and didn't get any particular issues with r20. I may have read that the layout changed quite a bit though...

steeve on 21 Oct 2019

Still happens today:

lastshaman@LasTshaMAN:~/my-project$ gomobile init
gomobile: No compiler for arm was found in the NDK (tried /home/lastshaman/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi16-clang). Make sure your NDK version is >= r19c. Use `sdkmanager --update` to update it.

@archanpaul workaround from above helps though.

LasTshaMAN on 14 May 2020

any updates?

vikulin on 9 Jun 2020

Reproduced for go v 1.14

vikulin on 9 Jun 2020

Android SDK does not use ndk-bundle path but ndk:
~/Android/Sdk/ndk
Subpath for toochains is also different:
~/Android/Sdk/ndk/21.2.6472646/toolchains/llvm/prebuilt/linux-x86_64/bin

vadym@ubuntu:~/Android/Sdk/ndk/21.2.6472646/toolchains/llvm/prebuilt/linux-x86_64/bin$ ls armv7a-linux-androideabi23-clang ld.lld armv7a-linux-androideabi23-clang++ lldb-argdumper armv7a-linux-androideabi24-clang llvm-addr2line armv7a-linux-androideabi24-clang++ llvm-ar armv7a-linux-androideabi26-clang llvm-as armv7a-linux-androideabi26-clang++ llvm-cfi-verify armv7a-linux-androideabi27-clang llvm-config armv7a-linux-androideabi27-clang++ llvm-cov armv7a-linux-androideabi28-clang llvm-dis armv7a-linux-androideabi28-clang++ llvm-lib armv7a-linux-androideabi29-clang llvm-link armv7a-linux-androideabi29-clang++ llvm-modextract bisect_driver.py llvm-nm clang llvm-objcopy clang++ llvm-objdump clang-check llvm-profdata clang-cl llvm-ranlib clang-format llvm-readelf clang-tidy llvm-readobj clang-tidy.real llvm-size dsymutil llvm-strings git-clang-format llvm-strip i686-linux-android16-clang llvm-symbolizer i686-linux-android16-clang++ sancov i686-linux-android17-clang sanstats i686-linux-android17-clang++ scan-build i686-linux-android18-clang scan-view i686-linux-android18-clang++ x86_64-linux-android21-clang i686-linux-android19-clang x86_64-linux-android21-clang++ i686-linux-android19-clang++ x86_64-linux-android22-clang i686-linux-android21-clang x86_64-linux-android22-clang++ i686-linux-android21-clang++ x86_64-linux-android23-clang i686-linux-android22-clang x86_64-linux-android23-clang++ i686-linux-android22-clang++ x86_64-linux-android24-clang i686-linux-android23-clang x86_64-linux-android24-clang++ i686-linux-android23-clang++ x86_64-linux-android26-clang i686-linux-android24-clang x86_64-linux-android26-clang++ i686-linux-android24-clang++ x86_64-linux-android27-clang i686-linux-android26-clang x86_64-linux-android27-clang++ i686-linux-android26-clang++ x86_64-linux-android28-clang i686-linux-android27-clang x86_64-linux-android28-clang++ i686-linux-android27-clang++ x86_64-linux-android29-clang i686-linux-android28-clang x86_64-linux-android29-clang++ i686-linux-android28-clang++ x86_64-linux-android-addr2line i686-linux-android29-clang x86_64-linux-android-ar i686-linux-android29-clang++ x86_64-linux-android-as i686-linux-android-addr2line x86_64-linux-android-c++filt i686-linux-android-ar x86_64-linux-android-dwp i686-linux-android-as x86_64-linux-android-elfedit i686-linux-android-c++filt x86_64-linux-android-gprof i686-linux-android-dwp x86_64-linux-android-ld i686-linux-android-elfedit x86_64-linux-android-ld.bfd i686-linux-android-gprof x86_64-linux-android-ld.gold i686-linux-android-ld x86_64-linux-android-nm i686-linux-android-ld.bfd x86_64-linux-android-objcopy i686-linux-android-ld.gold x86_64-linux-android-objdump i686-linux-android-nm x86_64-linux-android-ranlib i686-linux-android-objcopy x86_64-linux-android-readelf i686-linux-android-objdump x86_64-linux-android-size i686-linux-android-ranlib x86_64-linux-android-strings i686-linux-android-readelf x86_64-linux-android-strip i686-linux-android-size yasm i686-linux-android-strings i686-linux-android-strip

vikulin on 9 Jun 2020

For those who are facing the incompatibility problem, here is a temporary hack to use NDK r19.2.x :

1. Install NDK r19.2.x in the side of R20.0.x 2. cd $SDK_FOLDER 3. ln -s ndk/19.2.5345600 ndk-bundle

gomobile init should work with this hack!!

You don't need to install r19 ndk: just run
vadym@ubuntu:~/Android/Sdk$ ln -s ndk/21.2.6472646/ ndk-bundle

Thanks

vikulin on 9 Jun 2020

👍3

add the following to your ~/.bashrc:

export ANDROID_HOME=$HOME/Android/Sdk export ANDROID_NDK_HOME=$ANDROID_HOME/ndk/21.3.6528147 export PATH=$PATH:$GOPATH/bin:$ANDROID_HOME/platform-tools/

As I can see, you guys just have to specify the ndk version clearly.

yingshaoxo on 13 Nov 2020

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Go: x/mobile: gomobile +6d0d39b incompatible with NDK 20.0.x

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

Does this issue reproduce with the latest release?

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

What did you do?

What did you expect to see?

What did you see instead?

Android NDK version

Most helpful comment

All 9 comments

Related issues

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

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