I don't know anything about running the Android Emulator, but the error seems to be "Unable to open display". You mention that you did not use any Xvfb or Xvnc configuration. Maybe this is something that needs to be set up?

Eric


On 7/18/2016 2:05 PM, Ravi A wrote:
Please neglect my Problem #1 as this problem is related to "Android". Let me ask this question to "Android Google Group".
Request you to answer my Problem #2 with a solution.

Thank you,
Ravi


On Monday, July 18, 2016 at 11:53:06 AM UTC+5:30, Ravi A wrote:


    I am new to Android related work and Jenkins. Currently I am
    facing two problems as explained below and need help about these
    two problems. Kindly do the needful.

    I am using one "Ubuntu v14.04.4 LTS x64 Desktop Edition" based
    physical host (VT enabled from BIOS, Intel(R) Core(TM) i5-3470
    CPU) and following software also installed.

    Gradle v2.14
    Ant v1.9.7
    Maven 3.3.9
    android-sdk_r24.4.1
    java version "1.8.0_92"
    Android_Studio_v2.1.2.0   (android-studio-ide-143.2915827)
    KVM/Qemu
    Jenkins v2.7.1 CI server with following Android related "Jenkins
    Plugins"
            Android Emulator Plugin v2.15
            Android Lint Plugin v2.3
            Gradle Plugin v1.24
            Xvnc Plugin v1.23
            Xvfb Plugin v1.1.3


    Problem #1
    ----------
    Created on "Android VD" with AVD name as "Nexus_6_API_23" using
    "Android Studio" and later I could start Emulator from "Shell
    Command Line", but "Segmentation Fault (core dumped)" when I exit
    the emulator.

    ravi@ravi-dev-box:~$ emulator -list-avds
    Nexus_6_API_23
    ravi@ravi-dev-box:~$
    ravi@ravi-dev-box:~$ emulator -avd Nexus_6_API_23
    adb_server_notify: Failed to establish connection to ADB server
    console on port 5554, ADB on port 5555
    Your emulator is out of date, please update by launching Android
    Studio:
     - Start Android Studio
     - Select menu "Tools > Android > SDK Manager"
     - Click "SDK Tools" tab
     - Check "Android SDK Tools" checkbox
     - Click "OK"

    Segmentation fault (core dumped)
    ravi@ravi-dev-box:~$


    Problem #2
    ----------
    I tried to start "Android Emulator" about the same above mentioned
    "Nexus_6_API_23" AVD using a "Jenkins Job" which DOES NOT include
    any Xvfb and Xvnc related configuration. Build using this "Jenkins
    Job" fails as explained below (Console Output from the build).

    Started by user admin
    [EnvInject] - Loading node environment variables.
    Building in workspace
    /home/ravi/Downloads/Android/Spring/gs-gradle-android_3
    [android] Using Android SDK: /opt/android-sdk-linux/
    $ /opt/android-sdk-linux//platform-tools/adb start-server
    * daemon not running. starting it now on port 5835 *
    * daemon started successfully *
    $ /opt/android-sdk-linux//platform-tools/adb start-server
    [android] Starting Android emulator
    $ /opt/android-sdk-linux//tools/emulator -engine classic -ports
    5772,5773 -report-console tcp:5839,max=60 -avd Nexus_6_API_23
    -no-snapshot-load -no-snapshot-save
    Error: unable to open display
    Error: unable to open display
    QXcbConnection: Could not connect to display
    emulator: WARNING: Classic qemu does not support SMP. The
    hw.cpu.ncore option from your config file is ignored.
    [android] Emulator did not appear to start; giving up
    [android] Stopping Android emulator
    $ /opt/android-sdk-linux//platform-tools/adb kill-server
    [BFA] Scanning build for known causes...
    [BFA] No failure causes found
    [BFA] Done. 0s
    Finished: NOT_BUILT

    Thanks A Lot In Advance,
    Ravi

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*Eric Pyle
*
Release Engineer
Lebanon
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