Execution Failed for Task ':App:Transformclasseswithdexfordebug' While Implementing Google Sign in for Android

I get: Error:Execution failed for task ':app:transformClassesWithDexForDebug'. when making Google maps App

clean and see still error is there if yes,

1.go to your build.gradle file.
add multiDexEnabled true

 defaultConfig {
    multiDexEnabled true
}

2.in your dependencies add compile 'com.android.support:multidex:1.0.1'

dependencies {
 compile 'com.android.support:multidex:1.0.1'
}

3.inside your application tag in menifest add android:name="android.support.multidex.MultiDexApplication"

<application
        android:name="android.support.multidex.MultiDexApplication"
    ....

4.use this override method on your launching activity

 @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }

Android Error:Execution failed for task ':app:transformClassesWithDexForDebug'

You are compiling the whole Google play services library:

compile 'com.google.android.gms:play-services:8.3.0'

which can cross the 64K reference limit' during compiling..

See this

if u just use some services from the library you can Selectively compiling APIs into your executable

Like:

 compile 'com.google.android.gms:play-services-maps:8.3.0'
compile 'com.google.android.gms:play-services-plus:8.3.0'
compile 'com.google.android.gms:play-services-location:8.3.0'

I would also suggest to use latest version of play services compile 'com.google.android.gms:play-services:10.2.1'

2nd Way

If you really want to use the whole library : Enable Multidex in your application.

in your Gradle:

    android {
    defaultConfig {
        ...
        minSdkVersion 15 
        targetSdkVersion 25
        multiDexEnabled true
    }
    ...
}

dependencies {
  compile 'com.android.support:multidex:1.0.1'
}

in Application class:

 public class MyApplication extends SomeOtherApplication {
  @Override
  protected void attachBaseContext(Context base) {
     super.attachBaseContext(base);
     MultiDex.install(this);
  }
}

Define the application class in manifest:

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapp">
    <application
            android:name="android.support.multidex.MultiDexApplication" >
        ...
    </application>
</manifest>

Error:Execution failed for task ':app:transformClassesWithDexForDebug'. com.android.ide.common.process.ProcessException:

At last finally i solved my problem, thank you for your support.This is my Gradle file.

build.gradle(Module:App)

buildscript {
repositories {
    maven { url 'https://maven.fabric.io/public' }
  }

dependencies {
    classpath 'io.fabric.tools:gradle:1.+'
 }
}
 apply plugin: 'com.android.application'
 apply plugin: 'io.fabric'
 apply plugin: 'com.google.gms.google-services'

repositories {
   maven { url 'https://maven.fabric.io/public' }
 }

android {
   compileSdkVersion 23
   buildToolsVersion "23.0.1"

defaultConfig {
    applicationId "com.whyz.kitetech.mobile.cdrapp"
    minSdkVersion 16
    targetSdkVersion 22
    versionCode 1
    versionName "1.0"
}
dexOptions {
    javaMaxHeapSize "4g"
}
buildTypes {

    debug {
        debuggable = true
    }
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'),     'proguard-rules.pro'
    }
}
packagingOptions {
    exclude 'META-INF/LICENSE'
    exclude 'META-INF/LICENSE-FIREBASE.txt'
    exclude 'META-INF/NOTICE'
   }
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile('com.crashlytics.sdk.android:crashlytics:2.5.5@aar') {
    transitive = true;
}
compile('com.digits.sdk.android:digits:1.9.4@aar') {
    transitive = true;
}

compile 'com.android.support:cardview-v7:23.0.1'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:design:23.0.1'
compile 'com.android.support:recyclerview-v7:23.0.1'
compile 'com.google.android.gms:play-services-gcm:8.3.0'
compile 'com.android.support:support-v4:23.0.1'
compile 'com.firebaseui:firebase-ui:0.3.1'
compile 'com.google.android.gms:play-services-location:8.3.0'
compile 'com.firebase:firebase-client-android:2.5.0'
compile 'com.google.android.gms:play-services-maps:8.3.0'
compile 'com.android.support:multidex:1.0.0'
compile 'org.apache.commons:commons-io:1.3.2'
}

Error:Execution failed for task ':app:transformClassesWithDexForDebug'. com.android.build.api.transform.TransformException:..non-zero exit value 3

I just update my gradle file like below.This work like charm!!

I added below code in my gradle:

dexOptions {
        javaMaxHeapSize "4g" //specify the heap size for the dex process
        preDexLibraries = false //delete the already predexed libraries
    }

My updated Gradle:

    apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        applicationId "com.myapplicationname.app"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        multiDexEnabled true
    }
  //====================Add below two line=============
    dexOptions {
        javaMaxHeapSize "4g" //specify the heap size for the dex process
        preDexLibraries = false //delete the already predexed libraries
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
    }
    useLibrary 'org.apache.http.legacy'

}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile 'com.android.support:design:23.0.1'
    compile 'com.google.android.gms:play-services:8.3.0'
    compile files('libs/gcm.jar')
    compile 'com.android.support:multidex:1.0.1'
    compile 'org.apache.httpcomponents:httpcore:4.4.4'
    compile('org.apache.httpcomponents:httpmime:4.3.6') {
        exclude module: "httpclient"
    }
    //facebook sdk
    compile 'com.facebook.android:facebook-android-sdk:4.7.0'
    compile 'org.apache.httpcomponents:httpcore:4.4.3'

    compile 'com.paypal.sdk:paypal-android-sdk:2.12.4'
    //facebook sdk
    compile 'com.facebook.android:facebook-android-sdk:4.7.0'

}

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