Android: Getting "Manifest merger failed" error after updating to a new version of gradle

110

After accepting to update the project to new version of gradle I get this error:

Error:Execution failed for task ':app:processDebugManifest'.
Manifest merger failed : Attribute meta-data#[email protected] value=(26.0.0-alpha1) from [com.android.support:cardview-v7:26.0.0-alpha1] AndroidManifest.xml:24:9-38
    is also present at [com.android.support:design:25.3.1] AndroidManifest.xml:27:9-31 value=(25.3.1).
    Suggestion: add 'tools:replace="android:value"' to <meta-data> element at AndroidManifest.xml:22:5-24:41 to override.

How can I solve this problem? This is my app's build.gradle file:

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "com.sample.bookReader"
        minSdkVersion 16
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
    }
    ...
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:multidex:+'
    compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
    compile 'com.android.support:cardview-v7:26.0.0-alpha1'
    compile 'com.android.support:design:25+'
    compile 'com.jakewharton:butterknife:8.2.1'
    apt 'com.jakewharton:butterknife-compiler:8.2.1'
    ...
}

And this is the project's build.gradle:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.1'
        classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
    }
}

allprojects {
    repositories {
        jcenter()
        maven { url "https://www.jitpack.io" }
    }
}

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

How do I fix this error while maintaining the changes made by updating the gradle version?

This question is tagged with android

~ Asked on 2017-04-07 14:37:58

The Best Answer is


212

Put this at the end of your app module build.gradle:

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == 'com.android.support') {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion '25.3.0'
            }
        }
    }
}

Credit to Eugen Pechanec

~ Answered on 2017-07-11 04:46:50


90

You are using multiple versions of the Android Support Libraries:

compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
compile 'com.android.support:cardview-v7:26.0.0-alpha1'
compile 'com.android.support:design:25+'

Two are 26.0.0-alpha1, and one is using 25+.

Pick one concrete version and use it for all three of these. Since your compileSdkVersion is not O, use 25.3.1 for all three of these libraries, resulting in:

compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.android.support:design:25.3.1'

~ Answered on 2017-04-07 14:49:21


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