# How to install a specific Android NDK version on the Android/Linux stack **URL:** \ **Category:** Android\ **Tags:** android, android-ndk\ **Created:** [March 7, 2018, 1:17pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400 "2018-03-07T13:17:11Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![viktorbenei](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/viktorbenei/32/18_2.png) [@viktorbenei](https://discuss.bitrise.io/u/viktorbenei)\ **Post date:** [March 7, 2018, 1:17pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/1 "2018-03-07T13:17:11Z")
If the NDK version which is preinstalled on the Android stack is not the one you want to use, you can install any version via a **Script** step. Simply add a **Script** step as the very first step in the workflow, with the following content: ```auto #!/usr/bin/env bash set -ex # set env vars export ANDROID_NDK_VERSION='r15b' export ANDROID_NDK_HOME='/opt/android-ndk' # expose for subsequent steps envman add --key ANDROID_NDK_HOME --value "$ANDROID_NDK_HOME" # ------------------------------------------------------ # --- Android NDK # clean up if a previous version is already installed rm -rf "$ANDROID_NDK_HOME" # download mkdir /opt/android-ndk-tmp cd /opt/android-ndk-tmp wget -q https://dl.google.com/android/repository/android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.zip # uncompress unzip -q android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.zip # move to its final location mv ./android-ndk-${ANDROID_NDK_VERSION} ${ANDROID_NDK_HOME} # remove temp dir cd ${ANDROID_NDK_HOME} rm -rf /opt/android-ndk-tmp # add to PATH export PATH=${PATH}:${ANDROID_NDK_HOME} # expose for subsequent steps envman add --key PATH --value "$PATH" ``` Don’t forget to specify the version, at the top of the script (`ANDROID_NDK_VERSION` variable - in this example it’s set to r15b). That’s all! 🙂 ---
**Author:** ![koral](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/koral/32/357_2.png) [@koral](https://discuss.bitrise.io/u/koral)\ **Post date:** [May 14, 2018, 7:21pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/2 "2018-05-14T19:21:55Z")
`ANDROID_NDK_HOME` is already added to `PATH` in Dockerfile: [https://github.com/bitrise-docker/android-ndk/blob/master/Dockerfile#L30](https://github.com/bitrise-docker/android-ndk/blob/master/Dockerfile#L30) Value of `ANDROID_NDK_HOME` is not changed so there should be no need to append it again to `PATH`. ---
**Author:** ![viktorbenei](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/viktorbenei/32/18_2.png) [@viktorbenei](https://discuss.bitrise.io/u/viktorbenei)\ **Post date:** [May 15, 2018, 4:59pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/3 "2018-05-15T16:59:36Z")
You’re right in case of the [bitrise.io](http://bitrise.io) environment, but this #how-to was created as a generic guide, which can work even locally on your own Mac/PC 😉 ---
**Author:** ![rafaaddison](https://avatars.discourse-cdn.com/v4/letter/r/2bfe46/32.png) [@rafaaddison](https://discuss.bitrise.io/u/rafaaddison)\ **Post date:** [July 30, 2018, 2:50pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/4 "2018-07-30T14:50:24Z")
Hi! Thank you for the script! Nevertheless, I was trying to include it in my builds and faced the following problem: ``` + unzip -q android-ndk-r10e-linux-x86_64.zip replace android-ndk-r10e/platforms/android-21/arch-arm/usr/include/linux/netfilter/xt_CONNMARK.h? [y]es, [n]o, [A]ll, [N]one, [r]ename: NULL (EOF or read error, treating as "[N]one" ...) | | +---+---------------------------------------------------------------+----------+ | x | BITRISE - install ndk (exit code: 1) | 129 sec | +---+---------------------------------------------------------------+----------+ | Issue tracker: https://github.com/bitrise-io/steps-script/issues | | Source: https://github.com/bitrise-io/steps-script | +---+---------------------------------------------------------------+----------+ ``` Any hints on what is failing and how to fix it? Thank you! ---
**Author:** ![tamasbazsonyi](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/tamasbazsonyi/32/1654_2.png) [@tamasbazsonyi](https://discuss.bitrise.io/u/tamasbazsonyi)\ **Post date:** [July 31, 2018, 9:54am UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/5 "2018-07-31T09:54:50Z")
Hi @rafaaddison, Could you send us the build’s URL so we can have a look at the logs? ---
**Author:** ![koral](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/koral/32/357_2.png) [@koral](https://discuss.bitrise.io/u/koral)\ **Post date:** [July 31, 2018, 1:01pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/6 "2018-07-31T13:01:00Z")
> [@rafaaddison](#): > > replace android-ndk-r10e (…) It seems that you are either calling that `unzip` twice or there is `android-ndk-r10e` produced in some other way. If it is intended that you have an existing `android-ndk-r10e` directory and want to unzip NDK there you can just add `o` option to unizip. So it will be `unzip -qo android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.zip`. However, the proper fix seems to be unzipping only once. ---
**Author:** ![rafaaddison](https://avatars.discourse-cdn.com/v4/letter/r/2bfe46/32.png) [@rafaaddison](https://discuss.bitrise.io/u/rafaaddison)\ **Post date:** [July 31, 2018, 1:21pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/7 "2018-07-31T13:21:03Z")
Thanks for the reply. Indeed there seems to be already an existing android-ndk-r10e directory. I ended up using `echo "A" | unzip -q android-ndk-r10e-linux-x86_64.zip` Which takes the A as the response to the prompt question. As a side note I needed also to use the -darwin version instead of the linux one. ---
**Author:** ![viktorbenei](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/viktorbenei/32/18_2.png) [@viktorbenei](https://discuss.bitrise.io/u/viktorbenei)\ **Post date:** [November 23, 2018, 2:52pm UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/8 "2018-11-23T14:52:14Z")
I also made a step that can handle both Linux and Mac: [https://github.com/viktorbenei/bitrise-step-install-android-ndk-version](https://github.com/viktorbenei/bitrise-step-install-android-ndk-version) As it’s not shared in the StepLib (we probably will include this logic in another step and not have a separate one just for the NDK install) you can include it with the `git::` reference style in your `bitrise.yml`: ```auto - git::https://github.com/viktorbenei/bitrise-step-install-android-ndk-version.git@master: inputs: - android_ndk_version: r12b ``` Once added to the `bitrise.yml` you can use the UI to change the version, or just change the version in the YML (in this example above it’ll install `r12b`). ---
**Author:** ![Sebastian.Schlicht](https://avatars.discourse-cdn.com/v4/letter/s/e274bd/32.png) [@Sebastian.Schlicht](https://discuss.bitrise.io/u/Sebastian.Schlicht)\ **Post date:** [March 11, 2019, 8:29am UTC](https://discuss.bitrise.io/t/how-to-install-a-specific-android-ndk-version-on-the-android-linux-stack/4400/9 "2019-03-11T08:29:23Z")
Thank you very much. Using install-missing-android-tools@2.3.5 and specifying r19b as NDK version, it failed with following error: ``` Ensure required Android SDK components Retrying... Failed to ensure android components, error: output: > Configure project :app NDK is missing a "platforms" directory. ``` But after I added they install ndk step from Viktor, everything works fine. Thanks for this “custom” step. Regards