The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app

Question

This issue occurs when updating the dependencies classpath from 'com.android.tools.build:gradle:3.2.1' to *'com.android.tools.build:gradle:3.3.2'

project-level build.gradle

buildscript {
        repositories {
            google()
            jcenter()
        }

        dependencies {
            classpath 'com.android.tools.build:gradle:3.3.2'
        }
    }

    allprojects {
        repositories {
            google()
            jcenter()
        }
    }

    rootProject.buildDir = '../build'
    subprojects {
        project.buildDir = "${rootProject.buildDir}/${project.name}"
    }
    subprojects {
        project.evaluationDependsOn(':app')
    }

    task clean(type: Delete) {
        delete rootProject.buildDir
    }

app-level build.gradle

def localProperties = new Properties()
    def localPropertiesFile = rootProject.file('local.properties')
    if (localPropertiesFile.exists()) {
        localPropertiesFile.withReader('UTF-8') { reader ->
            localProperties.load(reader)
        }
    }

    def flutterRoot = localProperties.getProperty('flutter.sdk')
    if (flutterRoot == null) {
        throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
    }

    def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
    if (flutterVersionCode == null) {
        flutterVersionCode = '1'
    }

    def flutterVersionName = localProperties.getProperty('flutter.versionName')
    if (flutterVersionName == null) {
        flutterVersionName = '1.0'
    }

    apply plugin: 'com.android.application'
    apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

    android {
        compileSdkVersion 28

        lintOptions {
            disable 'InvalidPackage'
        }

        defaultConfig {
            // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
            applicationId "org.company.com.flutter_app"
            minSdkVersion 19
            targetSdkVersion 28
            versionCode flutterVersionCode.toInteger()
            versionName flutterVersionName
            testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        }

        buildTypes {
            release {
                signingConfig signingConfigs.debug
            }
        }
    }

    flutter {
        source '../..'
    }

    dependencies {
        testImplementation 'junit:junit:4.12'
    }

pubspec.yaml

dependencies:
flutter:
  sdk: flutter
cupertino_icons: ^0.1.2

dev_dependencies:
flutter_test:
  sdk: flutter
flutter_svg: ^0.12.0
printing: ^2.0.0
image: ^2.0.7

are you using any plugin? Android x Gradle build failure often occurs when you use a plugin which is not compatible with android x. also make sure you have updated your android studio. — Amol Gangadhare, Mar 27 '19 at 05:37
@jazzbpn, please share the error and also app/build.gradle file. — Ranjan Kumar, Mar 28 '19 at 12:53
You could simply avoid androidX.. check this link https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility#avoiding-androidx — Abhishek Mehandiratta, Mar 29 '19 at 06:06

score 19 · Answer 1 · answered May 24 '19 at 19:47

19

add this in android/gradle.properties:

android.useAndroidX=true
android.enableJetifier=true

Ref: https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility

answered May 24 '19 at 19:47

dsalkamoses

284
1
8

1

After adding the above lines to `android/gradle.properties` make sure to update the gradle dependencies in `app/build.gradle` such as: ``` dependencies { ... androidTestImplementation 'androidx.test:runner:1.1.0' androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0' ... ``` Ref: http://blog.wafrat.com/flutter-androidx-migration/ – Georgi Koemdzhiev Dec 08 '19 at 12:22

score 10 · Answer 2 · answered Aug 19 '19 at 08:11

10

I had the same issue, after checking these 2 links: https://flutter.dev/docs/deployment/android

and proguard. The only thing that worked for me was removing minifyEnabled true fom build.graddle.

Hope it help some one.

answered Aug 19 '19 at 08:11

viv

6,158
6
39
54

If you remove that line your code won't be obfuscated, you should fix by adding proguard rules – Juan Cruz Soler Nov 26 '19 at 04:08

score 5 · Answer 3 · answered Apr 29 '19 at 14:20

5

It seems you are using a Flutter dependency which is not compatible to Androidx, Try to comment the recent dependency and re-run it, If it's work, Try to use the dependency that's compatible with Androidx

answered Apr 29 '19 at 14:20

SilenceCodder

2,874
24
28

Abed Alirzaq Matary · Answer 4 · 2022-07-23T03:58:33.283

0

Make sure all assets are in use .

then flutter pub get then flutter pub upgrade then flutter pup outdated.

edited Jul 23 '22 at 03:58

answered Jul 23 '22 at 03:58

Abed Alirzaq Matary

1
1

The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app

4 Answers4

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