This AVD's configuration is missing a kernel file!

Hi,

I am trying to setup CI for Android, and I can’t succeed passing the UI tests. Here is the script I got:

image: openjdk:8-jdk

variables:
  ANDROID_COMPILE_SDK: "26"
  ANDROID_BUILD_TOOLS: "26.0.1"
  ANDROID_SDK_TOOLS: "24.4.1"

before_script:
  - apt-get --quiet update --yes
  - apt-get --quiet install --yes wget tar unzip lib32stdc++6 lib32z1
  - wget --quiet --output-document=android-sdk.tgz https://dl.google.com/android/android-sdk_r${ANDROID_SDK_TOOLS}-linux.tgz
  - tar --extract --gzip --file=android-sdk.tgz
  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter android-${ANDROID_COMPILE_SDK}
  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter platform-tools
  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter build-tools-${ANDROID_BUILD_TOOLS}
  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter extra-android-m2repository
  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter extra-google-google_play_services
  - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter extra-google-m2repository
  - export ANDROID_HOME=$PWD/android-sdk-linux
  - export PATH=$PATH:$PWD/android-sdk-linux/platform-tools/
  - chmod +x ./gradlew

stages:
  - unitTests
  - build
  - uiTests

unitTests:
  stage: unitTests
  script:
    - ./gradlew testProdDebug

build:
  stage: build
  script:
    - ./gradlew assembleMockDebug
  artifacts:
    paths:
    - app/build/outputs/

uiTests:
  stage: uiTests
  script:
    - wget --quiet --output-document=android-wait-for-emulator https://raw.githubusercontent.com/travis-ci/travis-cookbooks/0f497eb71291b52a703143c5cd63a217c8766dc9/community-cookbooks/android-sdk/files/default/android-wait-for-emulator
    - chmod +x android-wait-for-emulator
    - echo y | android-sdk-linux/tools/android --silent update sdk --no-ui --all --filter sys-img-x86-google_apis-${ANDROID_COMPILE_SDK}
    - echo no | android-sdk-linux/tools/android create avd -n test -t android-${ANDROID_COMPILE_SDK} --abi google_apis/x86
    - android-sdk-linux/tools/emulator64-x86 -avd test -no-window -no-audio &
    - ./android-wait-for-emulator
    - adb shell input keyevent 82
    - ./gradlew connectedMockDebugAndroidTest
  artifacts:
    paths:
    - app/build/reports/androidTests/

First 2 stages are passing just fine, but when it comes to the last one, it breaks, and here is the log:

    Done. 1 package installed.
$ echo no | android-sdk-linux/tools/android create avd -n test -t android-${ANDROID_COMPILE_SDK} --abi google_apis/x86
Android 8.0.0 is a basic Android platform.
Do you wish to create a custom hardware profile [no]Created AVD 'test' based on Android 8.0.0, Google apis Intel Atom (x86) processor,
with the following hardware config:
hw.lcd.density=240
hw.ramSize=512
vm.heapSize=48
$ android-sdk-linux/tools/emulator64-x86 -avd test -no-window -no-audio &
$ ./android-wait-for-emulator
emulator: ERROR: This AVD's configuration is missing a kernel file!!
emulator: ERROR: ANDROID_SDK_ROOT is undefined

May someone help or give an advice how to solve this?
Thanks in advance!

I’m having the same problem. Could anyone help?

Or maybe did you manage to resolve this @jovche ?

Good day

I encountered the same issue. And have two news for you:

• the good one is that I found what caused this problem (a kind of);
• the bad one: I haven’t figured out how to fix it for now.

The issue is caused by two things:

• as was stated in the error message, we need to declare a new environment variable $ANDROID_SDK_ROOT which will point exactly to the same place as $ANDROID_HOME;
• after that, there is a small file called kernel-qemu which must be present in a folder with a system image (android-sdk-linux/system-images/android-26/google_apis/x86) but is missing for some mysterious reason;
• kernel-qemu is the file on absence of which Android emulator is arguing

UPD:

• kernel-ranchu is present in the folder instead of kernel-qemu;
• kernel-qemu is a QEMU 2 file format (proof);
• kernel-qemu is unavailable in Android images newer that API 25 (i.e. is unavailable for API 26, 27 and all future versions) - checked on my local Android Studio installation;
• looks like QEMU 2 is installed with Android SDK

What all of this means? I don’t know

Maybe you can also create an issue here: https://gitlab.com/greysonp/gitlab-ci-android

I had the same issue when I was creating an android 9 emulator. The error is stating that kernel-qemu is missing and when I checked the installation folder kernel-ranchu was there.

When I updated the SDK tools solved the problem somehow.

I figured out how to solve the undefined error but to replace kernel-ranchu with kernel-qemu am lost

open the .bashrc file if on linux and add export ANDROID_SDK_ROOT= mine was export ANDROID_SDK_ROOT="$HOME/android-sdk-linux:$ANDROID_SDK_ROOT"

The error i currently get is
ERROR: ANDROID_SDK_ROOT is defined (/home/rumone/android-sdk-linux) but cannot find kernel file in /home/rumone/android-sdk-linux/system-images/ sub directories

The sub directories have the kernel-ranchu file, however, I do not how to modify that

@jovche THERE are any solution?

For me Updating the SDK Tools fixed the errors.
Screenshot of errors and update progress

Screenshot%20(120)1920×1080 172 KB