Не удается разрешить символ GOOGLE_SIGN_IN_API.. Вход в Google в моем приложении, невозможно получить доступ к переменной Auth.GOOGLE_SIGN_IN_API

apply plugin: 'com.android.application'
android {
    compileSdkVersion 23
    buildToolsVersion '25.0.0'
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES.txt'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/LGPL2.1'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/notice.txt'
    }
    dexOptions {
        javaMaxHeapSize "4g"
    }
    defaultConfig {
        applicationId 'com.cloudtree.glue'
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 3
        versionName "1.2"
        renderscriptTargetApi 19
        renderscriptSupportModeEnabled true
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            lintOptions {
                disable 'MissingTranslation'
            }
        }
    }
    productFlavors {
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile files('libs/google-play-services.jar')
    compile 'com.android.support:design:23.0.1'
    compile 'com.android.support:appcompat-v7:23.1.0'
    compile 'com.daimajia.swipelayout:library:1.2.0@aar'
    compile 'com.android.support:recyclerview-v7:23.0.1'
    compile 'com.android.support:cardview-v7:23.0.1'
    compile 'com.android.support:multidex:1.0.0'
    compile files('libs/httpclient-4.2.1.jar')
    compile files('libs/httpcore-4.2.1.jar')
    compile files('libs/apache-mime4j-core-0.7.2.jar')
    compile files('libs/httpmime-4.2.1.jar')
    compile project(':volley')
    compile project(':mediapicker')
    compile 'com.android.support:support-v4:18.0.+'
    compile 'com.google.android.gms:play-services-auth:9.8.0'

}

apply plugin: 'com.google.gms.google-services'

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

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.2'
        classpath 'com.google.gms:google-services:3.0.0'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}