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

Question

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#android.support.VERSION@value 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?

Answer 1

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