Android dependency has different version for the compile and runtime

Use this code in your buildscript (build.gradle root):

subprojects {
  project.configurations.all {
     resolutionStrategy.eachDependency { details ->
        if (details.requested.group == 'com.android.support'
              && !details.requested.name.contains('multidex') ) {
           details.useVersion "version which should be used - in your case 26.0.0-beta2"
        }
     }
  }
}

I had the same error, what solve my problem was. In my library instead of using compile or implementation i use "api". So in the end my dependencies:

dependencies {
api fileTree(dir: 'libs', include: ['*.jar'])
api files('libs/model.jar')
testApi 'junit:junit:4.12'
api 'com.android.support:percent:26.0.0-beta2'
api 'com.android.support:appcompat-v7:26.0.0-beta2'
api 'com.android.support:support-core-utils:26.0.0-beta2'

api 'com.squareup.retrofit2:retrofit:2.0.2'
api 'com.squareup.picasso:picasso:2.4.0'
api 'com.squareup.retrofit2:converter-gson:2.0.2'
api 'com.squareup.okhttp3:logging-interceptor:3.2.0'
api 'uk.co.chrisjenx:calligraphy:2.2.0'
api 'com.google.code.gson:gson:2.2.4'
api 'com.android.support:design:26.0.0-beta2'
api 'com.github.PhilJay:MPAndroidChart:v3.0.1'
}

You can find more info about "api", "implementation" in this link https://stackoverflow.com/a/44493379/3479489

You should be able to see exactly which dependency is pulling in the odd version as a transitive dependency by running the correct gradle -q dependencies command for your project as described here:

https://docs.gradle.org/current/userguide/userguide_single.html#sec:listing_dependencies

Once you track down what's pulling it in, you can add an exclude to that specific dependency in your gradle file with something like:

implementation("XXXXX") {
    exclude group: 'com.android.support', module: 'support-compat'
}

After a lot of time and getting help from a friend who knows a lot more than me about android: app/build.gradle

android {
    compileSdkVersion 27

    // org.gradle.caching = true

    defaultConfig {
        applicationId "com.cryptoviewer"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 196
        versionName "16.83"
        // ndk {
        //     abiFilters "armeabi-v7a", "x86"
        // }
    }

and dependencies

dependencies {
    implementation project(':react-native-camera')
   //...
    implementation "com.android.support:appcompat-v7:26.1.0" // <= YOU CARE ABOUT THIS
    implementation "com.facebook.react:react-native:+"  // From node_modules
}

in build.gradle

allprojects {
   //...
    configurations.all {
        resolutionStrategy.force "com.android.support:support-v4:26.1.0"
    }

in gradle.properties

android.useDeprecatedNdk=true
android.enableAapt2=false
org.gradle.jvmargs=-Xmx4608M

The answer for me was to also add this to my build.gradle file:

configurations.all {
  resolutionStrategy.eachDependency { details ->
      if (details.requested.group == 'com.android.support'
              && !details.requested.name.contains('multidex') ) {
          details.useVersion "26.1.0"
      }
  }
}

In my case, it was nessisary to enclose the resolution strategy in a configurations.all { .. } block. I placed the configurations.all block directly into my app/build.gradle file (ie configurations.all was not nested in anything else)

This worked for me:

Add the follow line in app/build.gradle in dependencies section:

implementation "com.android.support:appcompat-v7:27.1.0"

or :27.1.1 in my case

Add this code in your project level build.gradle file.

subprojects {
    project.configurations.all {
        resolutionStrategy.eachDependency { details ->
            if (details.requested.group == 'com.android.support'
                    && !details.requested.name.contains('multidex') ) {
                details.useVersion "version which should be used - in your case 28.0.0-beta2"
            }
        }
    }
}

Sample Code :

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    repositories {
        google()
        jcenter()
        maven { url 'https://maven.fabric.io/public' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0'
        classpath 'io.fabric.tools:gradle:1.31.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files

    }
}

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

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


subprojects {
    project.configurations.all {
        resolutionStrategy.eachDependency { details ->
            if (details.requested.group == 'com.android.support'
                    && !details.requested.name.contains('multidex') ) {
                details.useVersion "28.0.0"
            }
        }
    }
}

If anyone getting this dependency issue in 2019, update Android Studio to 3.4 or later

I solved it by upgrading my gradle dependency in the android/build.gradle file: classpath 'com.android.tools.build:gradle:3.3.1' (I was previously on version 3.2.

I resolved it by following what Eddi mentioned above,

 resolutionStrategy.eachDependency { details ->
            if (details.requested.group == 'com.android.support'
                    && !details.requested.name.contains('multidex') ) {
                details.useVersion "26.1.0"
            }
        }

Switching my conflicting dependencies from implementation to api does the trick. Here's a good article by mindorks explaining the difference.

https://medium.com/mindorks/implementation-vs-api-in-gradle-3-0-494c817a6fa

Edit:

Here's my dependency resolutions as well

 subprojects {
        project.configurations.all {
            resolutionStrategy.eachDependency { details ->
                if (details.requested.group == 'com.android.support'
                        && !details.requested.name.contains('multidex')) {
                    details.useVersion "28.0.0"
                }
                if (details.requested.group == 'com.google.android.gms'
                        && details.requested.name.contains('play-services-base')) {
                    details.useVersion "15.0.1"
                }
                if (details.requested.group == 'com.google.android.gms'
                        && details.requested.name.contains('play-services-tasks')) {
                    details.useVersion "15.0.1"
                }
            }
        }
    }

See in your library projects make the compileSdkVersion and targetSdkVersion version to same level as your application is

android {
    compileSdkVersion 28

    defaultConfig {
        consumerProguardFiles 'proguard-rules.txt'
        minSdkVersion 14
        targetSdkVersion 28
    }
}

also make all dependencies to same level

I comment out //api 'com.google.android.gms:play-services-ads:15.0.1' it worked for me after sync

Just add these lines in your build.gradle file

resolutionStrategy.force "com.android.support:support-media-compat:26.0.0-beta2"

resolutionStrategy.force "com.android.support:support-v4:26.0.0-beta2"

In my case, I was having two different versions of the below implementation in two different modules, So i changed both implementation to versions ie : 6.0.2 and it worked. You may also need to write dependency resolution see the accepted answer.

app module

implementation 'com.karumi:dexter:5.0.0'

commons module

implementation 'com.karumi:dexter:6.0.2'

I had the same error and I fixed it by adding this code to the gradle.properties file.

android.enableJetifier=true

configurations.all { resolutionStrategy.force //"com.android.support:appcompat-v7:25.3.1" //here put the library that made the error with the version you want to use }

add this to gradle (project) inside allprojects

Replace a hard coded version to + example:

implementation 'com.google.android.gms:play-services-base:+'
implementation 'com.google.android.gms:play-services-maps:+'