CircleCI Android constraintLayout doesn't work

Question

I am now using the CircleCI for my project. Also I am implementing the new constraintLayout in my project. Now I am stuck with the CircleCI building. It shows me this when gradle -dependencies run:

File /home/ubuntu/.android/repositories.cfg could not be loaded.
FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> You have not accepted the license agreements of the following SDK components:
  [com.android.support.constraint:constraint-layout:1.0.0-alpha3, com.android.support.constraint:constraint-layout-solver:1.0.0-alpha3].
  Before building your project, you need to accept the license agreements and complete the installation of the missing components using the Android Studio SDK Manager.
  Alternatively, to learn how to transfer the license agreements from one workstation to another, go to http://d.android.com/r/studio-ui/export-licenses.html

Here is my configuration in .yml file:

#Install android build tools, platforms
#Supported versions here https://circleci.com/docs/android
machine:
    java:
        version: openjdk8
    environment:
        ANDROID_HOME: /usr/local/android-sdk-linux

dependencies:
    pre:
        - echo y | android list sdk
        - echo y | android update sdk --no-ui --all --filter "tools"
        - echo y | android update sdk --no-ui --all --filter "platform-tools"
        - echo y | android update sdk --no-ui --all --filter "build-tools-24.0.0"
        - echo y | android update sdk --no-ui --all --filter "android-24"
        - echo y | android update sdk --no-ui --all --filter "extra-google-m2repository"
        - echo y | android update sdk --no-ui --all --filter "extra-google-google_play_services"
        - echo y | android update sdk --no-ui --all --filter "extra-android-support"
        - echo y | android update sdk --no-ui --all --filter "extra-android-m2repository"
        - (./gradlew -version):
                    timeout: 360
    override:
        #- ANDROID_HOME=/usr/local/android-sdk-linux ./gradlew dependencies
        - export TERM="dumb"; if [ -e ./gradlew ]; then ./gradlew clean dependencies -stacktrace;else gradle clean dependencies -stacktrace;fi

#Pull any submodules
checkout:
  post:
    - git submodule init
    - git submodule update

#-PdisablePreDex is a must else gradle just dies due to memory limit
#Replace
test:
    override:
        - (./gradlew assemble -PdisablePreDex):
            timeout: 360
        - cp -r ${HOME}/${CIRCLE_PROJECT_REPONAME}/app/build/outputs/apk/ $CIRCLE_ARTIFACTS
        - emulator -avd circleci-android22 -no-audio -no-window:
            background: true
            parallel: true
        # wait for it to have booted
        - circle-android wait-for-boot
        # run tests  against the emulator.
        - ./gradlew connectedAndroidTest

#Deploy when tests pass
deployment:
    #production:
    #    branch: master
    #    commands:
    #        - (./gradlew clean assembleRelease crashlyticsUploadDistributionRelease -PdisablePreFex):
    #            timeout: 720

    staging:
        branch: staging
        commands:
             - (./gradlew clean assembleStaging crashlyticsUploadDistributionStaging -PdisablePreFex):
                timeout: 720

I checked in the build log when

echo y | android update sdk --no-ui --all --filter "extra-android-m2repository"

command run and here is the result:

November 20, 2015
Do you accept the license 'android-sdk-license-c81a61d9' [y/n]: 
Installing Archives:
  Preparing to install archives
  Downloading Android Support Repository, revision 33
  Installing Android Support Repository, revision 33
    Installed Android Support Repository, revision 33
  Done. 1 package installed.

And my classpath is:

classpath 'com.android.tools.build:gradle:2.2.0-alpha4'

I am not sure what I've done incorrectly or is there anything I need to add more. Please suggest. Thanks.

Answer 1

Alex Fu's answer explains nicely where the problem lies and how to deal with it but there is a simpler solution. Since the license files are really just simple files with a bunch of hex characters in them you can create them simply without any copying. An example would be putting the following code into the pre: section:

- ANDROID_HOME=/usr/local/android-sdk-linux
- mkdir "$ANDROID_HOME/licenses" || true
- echo "8933bad161af4178b1185d1a37fbf41ea5269c55" > "$ANDROID_HOME/licenses/android-sdk-license"
- echo "84831b9409646a918e30573bab4c9c91346d8abd" > "$ANDROID_HOME/licenses/android-sdk-preview-license"
- echo "d975f751698a77b662f1254ddbeed3901e976f5a" > "$ANDROID_HOME/licenses/intel-android-extra-license"

Answer 2

TL;DR

You need to copy the licenses from $ANDROID_HOME/licenses into your CircleCI environment.

You can zip up your licenses and store it on Dropbox (or something similar) and modify your circle.yml file to download the licenses and extract it to $ANDROID_HOME.

The last paragraph of the error pretty much explains it

Before building your project, you need to accept the license agreements and complete the installation of the missing components using the Android Studio SDK Manager. Alternatively, to learn how to transfer the license agreements from one workstation to another, go to http://d.android.com/r/studio-ui/export-licenses.html