install google api java client for android using Gradle

Question

I'm trying to install the google api java client for android

according to the documentation, it should be easy, just add this 2 lines to your build.gradle file:

repositories {
    mavenCentral()
}
dependencies {
    compile 'com.google.api-client:google-api-client:1.20.0'
}

this is how my build gradle file looks like:

apply plugin: 'com.android.application'

repositories {
    mavenCentral()
}

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.journee"
        minSdkVersion 15
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}



dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:22.2.1-alpha1'
    compile 'com.google.android.gms:play-services:8.4.0'
    compile 'com.google.android.gms:play-services-auth:8.4.0'
    compile 'com.google.android.gms:play-services-ads:8.4.0'
    compile 'com.google.android.gms:play-services-identity:8.4.0'
    compile 'com.google.android.gms:play-services-gcm:8.4.0'
    compile 'com.android.support:design:22.2.1'
    compile 'com.google.api-client:google-api-client-android:1.20.0' exclude module: 'httpclient'
}

but when I try to run it I get an error:

FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.dex.DexIndexOverflowException: method ID not in [0, 0xffff]: 65536

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

following this post:

I tried to clean, and added the folowing lines into my file:

defaultConfig {
    multiDexEnabled true
}

but now the build just takes a long time and still ends up with an error:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: GC overhead limit exceeded

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.