Android Build error (gradle)

Ionic Framework ionic-v3
1

I am developing an Ionic 2 app on MacOS Sierra.

I’ve completed in-browser testing but am getting an error when executing ‘ionic build android --release --prod’:

FAILURE: Build failed with an exception.

  • Where:
    Build file ‘/Users/davidebbitt/Desktop/ionic2/cholTracker2/platforms/android/build.gradle’ line: 20

  • What went wrong:
    A problem occurred evaluating root project ‘android’.

java.lang.UnsupportedClassVersionError: com/android/build/gradle/AppPlugin : Unsupported major.minor version 52.0

The reference line 20 in the gradle file is:

apply plugin: ‘com.android.application’

I am longing to get this app into the Play store, so any help will be greatly appreciated.

Thanks!

2

Looks like you are building with an old JDK. You need to have your Java environment set up to build with Java 8.

3

you need to set the JAVA_HOME = /usr/lib/jvm/java-8-oracle

4

where do we have to set this above path

5

which OperatingSystem you are working on? If its on ubuntu then open a terminal, move to the project(your ionic2 project) folder and then set that JAVA_HOME variable

6

I have ionic 3 and I am on ubuntu
In .profile file I have set export JAVA_HOME=$JAVA_HOME:/usr/lib/jvm/java-8-oracle
ionic cordova build android is working fine
but ionic cordova run android is throwing the below error
UILD SUCCESSFUL

Total time: 1.323 secs
Built the following apk(s):
/var/www/html/ionic/myApp/platforms/android/build/outputs/apk/android-debug.apk

ANDROID_HOME=/opt/android-sdk/
JAVA_HOME=/usr/lib/jvm/java-8-oracle
No target specified and no devices found, deploying to emulator

Error: No emulator images (avds) found.

  1. Download desired System Image by running: /opt/android-sdk/tools/android sdk
  2. Create an AVD by running: /opt/android-sdk/tools/android avd
    HINT: For a faster emulator, use an Intel System Image and install the HAXM device driver

[ERROR] Cordova encountered an error.
You may get more insight by running the Cordova command above directly.

[ERROR] An error occurred while running cordova run android (exit code 1).